I might be wrong, and often am, but with putting I don't think it matters as much what style you use per se, but rather that you find the right style for you. I think too many people over think things and try to force square pegs into round holes.
The key, in any style, is consistency, and to get there I believe the most important thing is to find a simple, comfortable, and therefore easily repeatable motion that works best for you as an individual. What is most comfortable and works for one simply may not be the best option for someone else. That's why every player you watch does things a little differently, even within the confines of a particular "style."
Forget labels. It's of no importance. Find your comfortable, repeatable motion and make it yours.
Fwiw, I'm also a 950 advanced player (well, pre shoulder surgery anyway) and I got there because I could approach and putt. Off the tee....well, that's another matter entirely.