[EdZ]

between 95 and now there is nearly a 45 degree difference in his left hand position

Yes, geometrically flat. It is the left arm wedge that matters.

Some may disagree, but I find the most 'natural' left hand position to be at approx a 45 degree angle to the ground (if you hold your left hand out in front of you). Pretty much the usual recommendation of the 'v' pointing to the left shoulder.

If you look at Homer's grip or Ben Doyle's grip they both have this more natural left hand position (although perhaps a touch stronger than what I would suggest for Tiger).

Tiger's left hand position now is exceptionally 'weak'. 10-2-A at best. That requires a lot more motion and timing, and even some arch at impact. It requires 'doing' something to square up the face.