Flite Test Fail !! Tail not holding on ground at Throttle Up. Vibes. Then it catches up. Lifts off quick with extra Pitch. Single Blade dropping and striking frame on Spinup😮 ?? Takes off and flys with big Shudder in Blades/Head. Had to TCut and drop it 5 ft to concrete. Bounced hard on Skids. Needs Magnified Close Inspection! Maybe a Control Arm is Cracked and I can’t see it. Separating under Load. I’ve got Spare Parts. 😅