HV-Maxx 4.5 or MM and 9xl?

[BrianG]

I think some of the "pad rap" Novak gets is due to the high kv motors they use and they seem to be sensitive to gearing more than other motors, especially XL that has the extra torque which makes it more forgiving. Most now go with a motor with a kv of ~2000 or under and use voltage to get the 35k rpm sweet spot. For a given power, it's more efficient (fewer losses due to high amperage) to use higher voltage and less current than vice versa.

And as far as efficiency is concerned, you really outta check out a Neu motor. There IS definitely a reason for the cost difference! Of course, can't currently use them with a MM very well.