VJ:
Great info on swinging short shots. I don't believe I have read anyone write about rotation when describing a chipping and pitching motion on these forums.
Unfortunately, I have ingrained a steering motion after practicing thousands of repetitions of 12-5-1 and 12-5-2. Are you familiar with Brian Manzella's Up the Wall, Down the Wall, Swing Left of the Wall Swing? This works great with full shots. I am wondering if your method of constantly rotating the chest is the same as swinging left.