incoming dumb question
 

can the cm 36's run off of a bk warrior 9920

Yes. I can't remember exactly, but the BK's can run only 2-pole or slotless-stator motors. Either way, the CM36 motors fit both those requirements. The Castle/Neu motors however are 4 pole slotted stator, so they won't work.

Inseem to recall they have a 100k-120k? switching limit though so you might get issues with a 5700 on 3s.