Interesting. I’ll have to give it a try! I’d ask more questions but I don’t want to circumvent their proprietary system. I’ll sign up for it and get to work! I really think green reading is the final frontier of putting. As others have said, you can have the best stroke in the world, one that starts exactly where you are aiming every time and with perfect speed, but that matters not if the read is wrong!
I try to do a little post-shot routine after each putt, thinking to myself what was wrong: line (push or pull), speed, or read. Of course that’s not possible to do if you never know the slope for sure!