Hogan's hand path?
Great post, lia. Didn't notice the ulnar deviation before, interesting observation.
However, when you wrote:
What Lifter sees as an out hand path isn't in relation to where Hogan's hands and arms are at address, hence Kevin's point about Hogan's hand path not being "out" (not in relation to setup).
I was a bit surprised to read that. To me, that seems like a very simplistic way to look at hand path. That's just an observation that at impact, some golfers return to their original shaft plane and some return way way way above it. Hand path plays some role in that. But so do a lot of other factors, (above all maintaining the tush line).
With their flat swings, Hogan and Sergio's initial hand paths are relatively horizontal. Yet their hands still manage to reach the shaft plane at impact.
In contrast, a lot of players with vertical swings have initial hand paths that are relatively vertical. Yet their hands still end up way, way above the shaft plane at impact.
That's why I think that it's not useful to describe Hogan and Sergio's hand paths as "vertical." All that that does is create unnecessary confusion.
For the novice slicer, yes, it's useful to have a vertical hand path so he doesn't throw his hands out "over the top" (among other reasons). But obviously Hogan's transition was very different from a novice slicer's, which was why it was good for him to employ a relatively horizontal initial hand path.