Hi Don, I read a little bit and found that the lower pitch props will give you the best torque which I'm assuming that is what your looking for and at the same time the motors don't work as hard and have a better time cooling. So as long as you keep the load on the motor reasonable and monitor your heat you should be o.k. A suggestion may be to pick up a few props in lesser pitch and see how they perform. Let us know how it works out for you, Cheers,