I have the Sukhoi with a Magnum 91 4-stroke in it and the Sukhoi flies great, It's like it's on rails but you need to keep the speed up a little on landings or it will drop a wing. I laterally ballenced it before flying so it's not bad at all but does need to keep the speed up. It's my most flown plane.

IronCross, I started with a 15x4 to get good climb and it worked great as a break to slow it down for landing until I got used to it and now I've been using a 14x6 and still has good vert.

Dauntae