Thanks for the input tonyc, I am not sure I have an engine problem at this point. the Menz prop is the only one I have tried thus far and it may be loading the engine and restricting rpm. The engine has over 20 pounds static thrust and it has unlimited vertical plus outstanding downline braking. Now this is the Menz S 20x10. the Menz Ultra series is very similar to the Moki prop and will probably increase upline speed at the expense of downline braking. I think I am going to stay with the Menz S for now. Has anybody else tried this prop and if so, how did it perform?

jmw[:@]