Engine thrust angle and control deflection is not something I would worry about on a trainer. Due to the fact that the elevator thurst will make the engine track different at different speeds. Most newbies fly full throttle or some other throttle setting but do not manage the throttle setting so I would not worry about that.

As far as elevator deflection. Due to the servo being connected to just one side, the non-servo side will always have a little less deflection that the servo side when the plane is in the air. So I would not worry about it.