Good point on not holding the rudder during the turn - especially on a somewhat neutral plane that stays banked after aileron input. However on a very stable plane like some trainers, you have to hold the aileron to maintain the bank angle, therfore you would also hold a little rudder to counteract adverse yaw. The slower you go, the more you should steer with the rudder and less with the ailerons.

So basically, you are still only applying rudder at the same time as the aileron input for a coordinated turn. Just move both sticks at the same time, in the same direction.

I cringe when I see guys making the last turn on final with a trainer going very slow and having to bank the wings to 45 degrees and pull elevator to make the turn onto final heading, then full opposite aileron to level the wings, with associated adverse yaw - pretty hairy and will only teach you to snap that Extra 330 that you are going to buy as a second plane into the ground in a heartbeat.

The alternaitve is adding a little rudder coordination and banking to only 15 degrees or so and making a much more level turn onto final and making a nice non-busy approach.

Richard