Hmmmm....
adverse yaw...wasnt that caused by pulling on
one of the spoiler cables whilst sitting in the back of a Mk3 being flown by a staff cadet
Not that I ever did of course
Maybe we all put in a little opp rudder during a turn without realising it,but it could only be a little otherwise you would be sideslipping.
Thinking back 40yrs ...we were taught to initiate the turn inc using the rudder to overcome any adverse yaw but once established in the turn to centralise rudder input because you were no longer using ailerons ...
however...once established in the turn you might be using a little opp aileron to maintain the desired bank angle so I suppose you might require a little top rudder to counteract a small amount of adverse yaw from 'holding off' the bank.
I do not remember being taught that but these things fairly quickly become natural inputs,my initial training was at Spitalgate ,maybe the training was more advanced in Bucks...or maybe I have a rotten memory LOL
cheers LR