If a person does not have the skill to fix mistakes made by earlier training, then they do not have the skill to ensure they don’t make mistakes in a horse’s training.
On January 7 I posted my view on the importance of educating a horse to follow the feel of the inside rein with its thoughts when teaching it to turn or circle.
I have recently been in discussion with somebody who asked me how to marry the concept of using the outside rein when neck reining a horse with my opposition to using the outside rein in two-handed riding.