I'm not sure that it is sidethrust because that would mean the plane would want to yaw rather than roll, right? The only reason that it would want to roll is because the torque of the prop isn't being countered by the wings. Gliding under idle it doesn't have any bad habits. Trimmed for full power it also doesn't have any bad habits. It just that if it is trimmed for full power but engine is at idle, it banks left with verocity! I'm not talking about a slow roll, I'm talking about 10 degrees of right aileron. I thought it was just the Y.S.63 power that was doing it but now I just think the WS maybe too short or something. I mean, does too much left thrust make the plane bank left?

About brushless - my WM (<--- see I'm still back on this!) Clipped Wing Cub EP has a hobby lobby MP jet outrunner brushless (well kinda... it's Taiwan made but looks just like it!) and a Jeti brushless controller and really does fly with great authority. Unfortunately, the wing is warped with this ARF (I think it was their first batch) and I can't say that I love it!!! I will say, however, that I will buy another just because it's a wonderful looking plane. It flies off a locally made (LHS) 11.1 3S2P pack or Kokam 3S1P pack... both are wonderful! I don't have picks with the brushless setup but when I do I'll post them...