Originally Posted by Racermac73

I had the same problem with a actinium motor in 17.5.. Turned minimum drive frequency up, ect.ect and nothing fixed it. Put the motor on a motolyser with a 1s pack and found the timing was simply to high. 47° on the motolyser runs great but when it was at 49° it was just to high causing it to cog, be slow and occasionally required a push from a dead stop just to get it moving.