I think when the proper riding techniques are discussed one has to realize than an instructor at a stable teaching a newcomer how to ride in an arena probably has principles that don't apply to those of us here who were literally in the saddle before we were walking. One learns and adapts according to the saddles, horses, country, and the riding required. If you ride incorrectly it hurts and you learn to adjust.

BTW, that "ignore" button is a wonderful feature.