[sjcrss]

I don't think your controller is the issue, I think it's fine along with the cell count your running....the 19 series motors will work for you, i think you need to keep your rpm per volt around 2500 or less for the amount of cells your running, this will put you in the 40,000-50,000 rpm range on the motor. the big question is how to gear it for the speed you want without thermaling your system.