A good test in my opinion would be to measure tension on a racket with all devices when freshly strung and then after the racket has been used and see if they all measure the same amount of tension drop

I'm a Racquet tune user. First don't hit the Racquert to fast like in the video. The phone can't pick up rappid hits. And no bakground noice, that ruins very easely the test. You have to calibrate and pick the string you use. Second and best future is that it keep history log on you racquert. Dates , tension, tension over time, breaking string .... If you are lika me keep more then 4 racquet the App. is a big help ;-)

@Tennisbull-match-statistics

4 жыл бұрын

How accurate is it for you?

Anther great video - thanks! One comment on the Racquet Tune APP - the app measures sound. The sound generated by tapping is a function of and highly dependent on the specific racquet model and stiffness, area of the strings, number of mains / crosses, as well as the type/model of string and thickness - different strings will be softer / stiffer than others. That is why it is important to "calibrate" the app to your specific setup. Upon your first try, the APP will give you a calculated string factor - this is only an approximation. You should then go into the string menu and edit/adjust the string factor either up or down and remeasure until you get the tension you actually strung the racquet at. Storing these numbers you can now go back to that racquet / string setup time and time again to track loss of tension over the life of your strings. I wonder how the numbers compare between the RT App and your other measuring tools as the racquet experiences tension loss. I reiterate - you have to "calibrate" the factor - not just use the calculated factor, because it will be different for each model of racquet, string bed area, number of mains/crosses, and the specific model of string you use. I have a step by step procedure I use at www.racquetman.ca/post/using-the-racquet-tune-app-on-your-smart-phone (BTW - I also get tired whacking the strings - though I think it works great for your typical "poor" tennis player, particularly for tracking tension loss as you play. Keep up the videos - very informative! Thanks again!

I am a player and stringer my self, The racket tune is a great App with lots of options and accuracy if you give all the data correctly, besides after a while gives you a huge data base on how different string of yours lose tension and how much and lot more which will become a gold data for your future reference. needless to sat RT 300 is great as well but after a while you don't have a data base which you can refer to. I would suggest every player should have this App and it will increase Tennis community and Stringers Improve.

@tanchongkiat

3 жыл бұрын

Can I ask how this would measure on a hybrid setup and using different strings?

Racquet Tune is the most accurate tool to measure Relative Tension as in how much your tension has dropped since strung fresh (same way your Ear works when you tap your strings and listen to the frequency of the sound ... frequency goes down, so has your tension). If you want to get accurate Absolute Tension readings from Racquet Tune, you'd have to input accurate variable data in to get accurate data out. Just trial and error and you'd be good. The best $3 bucks I have ever spent buying Tennis tools.

@p.o.4339

4 жыл бұрын

Agreed. I find RacquetTune helpful...and free, as far as I know. The app guide says the results will not be the same as the tension from a stringing machine. Additionally, as he finally pointed out, remove vibration dampener. Very useful for monitoring tension loss. Compared to $200 for ERT device....fuggedaboudit!

@JackJensenTrader

3 жыл бұрын

Does it presume the same intensity of striking, though? With the same hardness of tool, and at the same location? If it is consistent, that's good, but I'd be concerned since it was apparently so far off on the actual tension.

@a2casius

3 жыл бұрын

@@JackJensenTrader The tool requires to strike the strings more than few times to create good enough audible frequency on several occasions before it registers a tension readout. So no worries on the strike. You just need a good enough tool to create the audible frequency needed. As for the accuracy, you need to input the correct stiffness factor to get the correct absolute tension output. If the readout if off, it's most probably because the string factor inputed is also off. As I said before, I concentrate on the Relative measure of the loss in tension rather the absolute measure. That's what the tool is superior at.

Wow! Never knew something like racquettune existed! This is a life changer for me lol. Thanks!

I use the app on my phone. I don’t even mess with the settings too much other than head size and string pattern. Doesn’t matter what your tension reading is just like a weight scale. Just get a baseline for your string and see how much tension drops so you know when you may want to restring. Like a scale doesn’t matter what your weight is on it you only need to do something once that number starts going up.

We are assuming the racquet is actually 54 pounds strung. But we all know that different stringers or possible errors with whatever machine you use might make the machine string higher or lower. So before saying which tool is the best for measuring string tension, we need a control to know is it measuring right.

Thanks for this great demo.

It does take some time with the racket tune and it relies on the string factors already stored in the database from other users. U gotta hit it in the sweet spot in the middle with a quick motion. Don’t need to be hard. When u get the sound right the bar will fill up quick. Also there’s the c and b values can be adjusted to get it to read higher or lower.

4:41 "Gamma Dealer" sounds like a shifty double agent from the Marvel Universe.

😂 This video gave a great laughing start to the week!

Thanks for the video. Frankly I don't care too much for accurate tension number and would rather like to know how these compare when measuring tension loss over time.

Thank you for the video

Hi Harry @tennisspin - I really enjoy your videos. A question about Stringometer- is it a good tool for comparing one racquet’s tension relative to another?

Always great tennis content, keep up the good work.

Question for Harry: since polys lose a lot of tension immediately and in the first few hits, do you string for the initial tension or the eventual tension? What about hybrids where the poly loses much more than gut or multi?

Hey! Could you make a video about Head extreme vs Head instinct, and about their up and downsides and which one is best for a certain type of player?

I also use the ERT after stringing. I also used to check my student's racquets to see if they are playing with dead strings. Top pros never play with dead strings because they cut them off every day. But students use RPM blast and keep it on their racquet for months. It is a great string but not after three months.

@goggleboy2464

2 жыл бұрын

Rpm blast is garbage string.

@waa123w

Жыл бұрын

The ERT does not measure if a string is "dead". It is measuring tension (actually stiffness). Dead vs. lively is a function of the resiliency of the string changing over time, not the tension.

Hello. Quick question: What tension do you like for a kid’s 26”-inch racquet. I just used the Stringmeter on my son’s 26”-inch Pro Staff and the tension is 35 (assuming that Wilson’s pre-strung stock strings are 16 gauge). Thanks in advance!

I’ve been a stringer for years and always make sure my crank machine is calibrated accurately. It’s always bugged me when a customer pulls the string meter out and comes up with A bogus reading of about 20 pounds off. We all know a Racquet loses tension right after it comes off of the machine but I also know it’s not that extreme. I decided to buy one and found in the literature that it’s actually for nylon string and they even tell you that it’s not uncommon to come up with a 10 to 20 pound variation. I talked to two other stringers to get their opinion and found that they came up with the same conclusion. I really like watching “Tennis spin“ but I’ve got to say that I think that this one was very misleading as far as the string meter.

For racquet tune, did you select the proper string brand and gauge for the string factor? If not, it would be off.

@chuckfriebe843

4 жыл бұрын

He was too tired.

@gdeangelkick

4 жыл бұрын

@@chuckfriebe843 I think any time you have an app like that, there is an element of mental fatigue that is worse than the actual work you have to do. I surprised an app from a few years ago still even works and didn't get fragged by an OS "update"

What about Sergetti string method? Is the sweet spot really that big, and does the tension keep 2x longer?

Anyone else yelling at the screen when he first tried with the dampener on?

I have always wondered how accurate the StringMeter is on the OTHER scale (I think it's called "free string tension")... as that would be very useful if you are using a LO machine and wanted to check for tension drop after the machine locks down due to stretch. Other than investing in a Wise pull-head, I don't know of any other way to read that while pulling tension. Have you ever taken the StringMeter and used that scale and compared to what the machine is reading in constant pull mode?

If you string a racquet with two strings: mains at 56 and crosses at 54lbs, what would be the correct reading of the device? 55lbs?

what string factor did you use for RT also it starts losing tension as soon as you take it off the machine so 51 could be right

Yes, there are tips for you. For the app to work correctly, since this is a sound-based program it needs accurate details. You need to put details for the racquet and the string, like string pattern, head size, string model, and string factor. Only then will measure the tension correctly, of course only if you keep silent during the test ;) Nevertheless thanks for the tips! I wouldn't know about this app without you.

Did you input all the different string parameters before tapping? String gauge, thickness, string opening size, etc before tapping? It might be more accurate if so.

Do you sell those ert300’s? They’ve not been available for sale in Europe for years.

Interesting. The best device is incredibly expensive. I have the RacquetTune app. You just have to hit it once w another racquet. Having said that - it used to be very accurate but with the new version it’s way off - just got my racquet string at 52; reading 44.

I tried purchasing online the ERT 300 and it is out of stock everywhere I look. One site noted it as discontinued. Today is Feb 6, 2021. Any info you can share about getting hold of this item? Thanks.

Love the channel. B roll could use some help to improve quality next

First and ty for the lovely 😊 video

Good video. It would be more helpful if you measure two rackets with different tension

Should’ve tried a couple more readings on the ert to see if it gave the same number every time

sooooo... where is "what happened to prince"?

i use luxilon ace 18 gauge. i guess stringmeter wont work for me???

you are funny man!!!!

I recommend app tennisvibes. Cheaper and better. Even free version is enough. But you can not hit so fast like on this video. It measure wave length so need to hit slower

Hey! I just bought a Gravity Tour off of Tennis Warehouse and they told me they didn't measure the final swingweight and weight of the racquet at the moment of shipping :( . I've seen complaints about the tour having issues in QC so some Tour racquets have actually more swingweight than a Pro model. I dont know how to measure these things once it arrives. What can I do

@ichinomiyaconbimai5104

4 жыл бұрын

The balance might be out if that is the case?

@vanodne

4 жыл бұрын

Look at the Tennis Warehouse University website and find the swingweight tool. It's not too hard to measure SW yourself. Measuring balance is trivial.

as far as the app is concerned, can you make the test with for example 3 different racquets? maybe the app miscalculates with the same nominal or percentage amuount to ERT and you should add or reduce the result form the app with that difference to obtain adequate result; try hitting with other raquet frame instead of screwdriver.. it could be more comfortable.. there's also other app in store..

where can I get the ert 300?

My ERT experience is sketchy to unbelievable. It's accurate with some strings, most others It's not even close to reference tension. I only use it now to log a DT value, as it is consistent with the values it gives. Just like any other measurement.

"Ive been wacking that thing all day long" sorry I had to smh lol

Is this only for ios.mean to say can we download into android device.

Play that funky racket

would think that the devices that actually test the tension through contact would be the more accurate ..If I strung for a crust I would get one of these ..Might still just for myself

String meter is useless for me because i string too hi. RT just was a pain and read all over. Ert300 is the best for me too. Though its sensitive do dont toss it on the counter!

You have to set the racket and string type with the racket tune app

Hello! I was hoping you would have included information about the relationship between reference (pulled) tension vs actual (string bed) tension. I believe the StringMeter and the ERT 300 measure actual tension and you would need to convert to get the reference tension.

@bowsershark

4 жыл бұрын

The app was crappy

8:13 I know the feeling.

What do you guys do to fix stringing machine tension loss? I’ve been stringing my pro staffs @ 56-7 lbs mains & crosses, and my gamma tester reads my strings @ 50-51 lbs.

STEAM BUNS !!!!! Stuffed with Pork ? or Sweet Paste ??? T - Shirt

Recent Racquet Tune App measurements shows tension is quickly lost upon break-in, and then stabilizes a little lower. Except third Presige Tour, which could be attributed to less play. RacTuneApp Racquet Area, in2 String pat Strung, lb Tension, lb Date strung Prestige Tour MP 102 18x19 60 50.2 10/26/20 plays xlent Prestige Tour MP 102 18x19 60 50.2 03/12/20 Prestige Tour MP 102 18x19 60 51.1 05/20/19 NXG Tour MP 100 16x20 58 48.8 11/14/20 plays xlent NXG Tour MP 100 16x20 58 46.4 02/30/19 NXG Tour MP 100 16x20 58 46.2 09/06/18 Strung at Pro Shop on top-of-the-line stringing machines. Of course, I didn't measure RacTune tension right after stringing. Gamma Live Wire XP 17

Thanks! Very useful! Anyone knows where i can buy ert 300?

A heavy serving spoon is the best way to measure the RT app.

The ERT does not measure tension, it measures frequency (just like the app). So measuring with the dampener installed and holding it by the throat is not how to do it.

Has this guy ever replied to any comments????

I am very surprised that the String Meter came out as accurate as it did

Shoulda done a blind test, someone else strings it up without you knowing the tension

ERT300

Ert needs a button to show the tension rather than a chart and to key in the sq. Size of racket. Or just show tension no one cares about dynamic tension.

maybe the angle, but l read 50lbs on first meter...

what if you string mains and crosses in different tension?

@JB-fo7po

4 жыл бұрын

DanTuber you can set RacquetTune up for hybrid.

What ever you do, don’t take up drums. 😄

Why wouldn’t you just use a second racquet to hit the string bed? I’ve been seeing stringers do that since I was a kid. You hit the hoop of one racquet against the stringbed of another and they can estimate tension by it’s pitch. Doesn’t seem hard to me. But that app has got to be more accurate than 4 lbs off at 54 lbs for me to buy it. That’s a TON off. I have my sticks strung at 53 lbs. once they relax to 50 lbs I get them restrung bc the ball starts sailing on me.

@nicolewb24

4 жыл бұрын

Never mind. That app is hot garbage. I just tested it on a racquet I had strung today at 53#. First, it told me it was at 32lbs. Then I increased the “string factor” to 1.7. I think that’s right for Signum pro x-perience 17g, but honestly I’m not real sure...so then it said it was at 43#s. I hit with it today. It’s at 53 like I like it. Too bad, was hoping this app could help me track tension and longevity of my strings.

@faithF8

3 жыл бұрын

@@nicolewb24 hi! If you have strings that are 17G, your string factor is probably 1.25, definitely not 1.7! The bigger the gauge, the thinner the string. The "string factor" seems to be the size of the string in millimeters. Check the 1.x number for your string, that's the data you need to input.

@nicolewb24

3 жыл бұрын

faithF8 thanks - I didn’t interpret string factor as the width at all. I do usually play with 17g, I’ll give this a shot.

That app is rubbish, worst 2.99 I ever spent. Played around with it a few times and was always out and inconsistent for checking a fresh string job and tension over time. Bought the string meter and is pretty good. Like in the video mine is only a lb out.

You’re not using RacquetTune the most efficient way… you need to hit the string once then give it 2 seconds to process, then do it again. If you keep hitting it like in the video it will get confused and takes longer time to process. If you hit and wait, you can get the result within 3 hits

11:35 the tip is don't use it.I have it and it wont give you the same tension for the same racket testing it just a few seconds apart. Like 3-4 lbs different. BTW, the bag looks very cheaply made. The straps, the plastic linning.

It seems ERzt are out of stock all over the world. I look into US eBay, Amazon, Europe eBay....etc., but all in vain.

Hi Harry, Do you know the String Lab tension meter? kzread.info/dash/bejne/jKZqypWMZ7zdo6Q.html ? This machine measures the DT-value. Wortwhile to check it out.

Please say in Kilos as well. So the rest 95% of the World Can understand

You get what you pay for

and here began the whack jokes

Laborious. Get straight to the point. All of your videos are longer than Djokovic’s head!

@Spellcheekswammablamma

3 жыл бұрын

😂😂😂😂

String meter is not accurate . Test multiple rackets and u will see it sucks balls

Dude tou completely botched racquet tune test.... Why put in the video if you're not willing to give it a fair shot?

Theres no way the app would be accurate, just too many variables plays into it.

@tomr6955

4 жыл бұрын

I guess it assumes that a certain frequency equals a certain tension. You're probably right though it might differ between racquets you would think

Downloaded the app. Waste of $3. Garbage.

@Charmander009

4 жыл бұрын

Lollllll

Thanks for another great video, couldn’t find the ERT300 on TW anymore for a while. What about the tension difference between M and C? Will ERT-300 tell the difference?