Thanks guys, I think I will still use the 46 to start with, and see how it goes. Then if needed I'll step it up. Have heared a lot of people say a good 46 matched with the right prop is enough power. But we'll see in time. I can't really afford all digital servo's! Will the hitec HS425bb be good enough for moderate 3d? (i.e. Hover, torque roll, waterfalls, harriers, elevators) Also is a 5 cell Rx batt pack a good idea?