Depending on the terminology of your radio end throw may or may not work. If your using a computer radio with two servos they both need to be plugged into different channels, and both ailerons should start and stop moving at the same time with the downward aileron deflecting less. Torque is not the real culprit with ground handling in models or most A/C for that matter. Short of High performance full scale A/C torque is minimal. P-factor is the real culprit. Read up on it if you haven't heard of it. It will make what the plane is doing more obvious. A great book to read for anyone in this hobby is "Stick and rudder: an explanation of the art of flying" by Wolfgang Langewiesche. It will make you understand your A/C like never before. Truly understanding the theory of flight is the best way to enjoy this hobby. A larger engine will mean a larger prop therefore more P-factor. You can reduce the prop diameter and increase the pitch to lessen the effects of P-factor though this will also increase the ground roll and the top end speed a little. It also tends to take a little longer to slow down, but bi-planes don't usually have that problem. It is usually best to stick near the recomended engine size until you have more experience with this type of A/C. Above all learn to use the rudder.