Performing the turn on the haunches and forehand really help. I do them in my warmup, along with the sidepass later on. I have trouble having my horse move off my leg in the circle, though he moves off my leg on a straight line. I love doing shoulder in alot because i find it most effective with my horse in getting him to respond to my leg.
Thank you for promoting light touch. So many times I see riders using to many training aids instead of allowing time for their horse to understand what they are asking and evaluating themselves to be sure they are not confusing their horse with poor aids and position. I think your article was easy to read and promotes thinking about being sensitive to our horses ability and understanding.