What I don't get is how players who already can make a ton of shots with spin or whatever need to verify that something works. They already miss very little how is anyone to know if anything new helped them.
The test is to grab a group of bad players, show them the method and live on camera have them execute the shots using their equipment with various shots.
I am not going to watch a guy that ran run 6 racks of 9 ball or 150 balls in straight pool tell us what a great new thing something is that helped them. Hi, my name is SVB, before I started the aim to win system I only won 56 events last year, now after the system I won 57, it's a miracle!
Now if APA Joe that is a 3 that we know is a 3 in a week is shooting like a 5 or a 6, that is something. Or better yet a guy stuck at a B level for years and in a week is shooting like an A after some new thing, that is something too.
But either way, we can't out-run the nuts on the laws of physics or human variables, so anyone that things they found the secret of aiming with spin is simply mistaken with what they found. At best it will work for them some of the time using their cue and a few others that shoot the exact same way.