I would have figured the old man is set in his ways, but Bob Harig of ESPN quotes Tiger discussing the new flagstick rules and the Big Cat is warming to the idea. In some situations.
This in particular caught my eye:
"I've been experimenting trying to hit putts downhill at home and see how that feels, and I didn't find that I hit better putts. It just felt like I could hit it more aggressively, which I did. Then I started running it 8 or 9 feet by. It might be more advantageous when we get on faster greens, a little bit more slope, i.e. Augusta. Where you have that sense of security on a 3-footer, a 4-footer down the hill, you can just take a cut at it."
This is going to be fun!