I have been working on timing and arm swing, and footwork, as well as consistency. I have had to switch playing hands due to an arthritic issue with a pair of joints in my hand. It has been fun and interesting, and sometimes frustrating, but the upside is focusing on proper technique from the beginning. The more I work on keeping my hips fixed and shoulder on target and not moving, or "quiet" as they say, I have noticed some results like I used to put up, though it is still a work in progress. It is remarkable how much better you do when you focus on a single key as you line up and begin to move.
Also, with this new swing, I find myself having to tweak my old spare system of 3-6-9, as I have a greater degree of axis tilt, and my spare ball will move a bit on this side then it did on my other one.