I designed an ambidextrous PCBb to join any multicore to a breadboard with ease.
i have a couple for sale on ebay
www.ebay.co.uk/itm/144879504892
or you can order yours yourself directly from PCBWay.com
www.pcbway.com/project/sharep...
I have used a 2mm thickness PCB for extra strength as well as a double header to connect to the breadboard. Also added as an extra function is the ability to 'unbalance' any of the 8 channels simply by using a jumper.