I recently stepped up from my 3ch Syma s107 coaxial to a WL Toys v911 FP. Having a blast, only one or two "crashes" and a few hard landings, but nothing's broken. My question is about the trim. What do I need to do if right aileron moves the helicopter perpendicular right, but left aileron moves the helicopter at a 45 degree angle, left and forward. What needs to happen to correct this?