Posted this on IG yesterday, just something I thought would be interesting to throw out there. I could be completely off but when you look at players that have had long, relatively injury-free careers they tend to have more "freedom" with their lower body (Phil, Jack, Sam Snead, Vijay). By freedom I mean allowing the hips to turn, trail knee losing some flex and the lead knee moving inward. I've also felt Tiger's swing, especially in recent years, is too restrictive and hurts his downswing sequencing.
Someone commented that it wasn't a good comparison because the swing of Tiger's isn't a driver swing, it actually is but I'll also share this driver swing from last year in Phoenix.
Here are some of the comments and my responses: