I have a Thunder Tiger Stick .40 with a TT .46 Pro on it. It has been modified a bit with duel Aerilon servos, larger rudder and moved the elevator and rudder servo to the back.

In the past I have not used my rudder much but have been trying to use it more but with this plane the affect the rudder makes it difficult to use.

When applying rudder on level flight the plane gains altitude as if I am adding up elevator at the same time. Is is supposed to do this? What is the correct response of the plane when rudder is added at level flight. I do have a computer radio so I can do some mixing if needed. I thought about adding some down elevator when the rudder is used but will this have affects that are not desired? Thanks for your help