Thanks OC. I'm running a 12XL. I have an 11XL on the bench. Before I try that a 48mm prop is going to be applyed. Also I had forgot to grease the cable and shaft. That may have hurt speed some. I am prepaired to drop as low as a 9Xl to get more rpm. If I cant hit 40 after all that..Then I will be To Mr Hill about some lipos. An esc upgrade will have to be done also. I am running a Hex 120 now. 20v max. As for handeling...a quantum leap. All I want is 40 out of her. Anything over that is to much for the hull...IMO.