I have been flying my Goldberg Super chipmunk with an OS91 surpass (not 3d, I know). It does a great knife edge moving left to right across the sky with the canopy facing you. Then, coming back, moving right to left across the sky ,also canopy facing you, it takes a lot more rudder input (max) and needs a lot more up elevator.
Why is this? is it due to engine torque? could it be I don't have the right degree thrust offset with the engine?

I have a pull pull set up on the rudder and have it set up with a lot of throw.

Thanks for any input.

Rob