RE: Ulitimate setup
Do you have the profile Ultimate by E-flite? If so I flew that airplane with the same motor and gear ratio with a 12x6 GWS propeller. The plane performed great with a 3 cell 860 and I could hover all day with it. Great airplane. If you have the new Ultimate FX I'd still use the GWS 12x6 propeller.
Bevo