I stumbled onto what I think is a one-plane swing that works more consistently for me. It seems, at least for me, to be more simple than a two-plane swing. My arms, shoulders, and spine angle appear to be more in unison and I have more power (that's a relative term, of course!). Still, it seems less complicated. I'm not sure what age has to do with it, though. I'm 51, so maybe I'm just hitting my prime!

Bill