A lot of you are mentioned using the pocket reducers, instead of this aiming tool, but pocket reducers won't tell you that you still have a garbage stroke and can't shoot straight.
I guess that raises the question: If you are consistently making balls in tight pockets, can you have a 'garbage' stroke and not be shooting straight?
I can't do the whole 'shoot between two objects' thing to save my life, but that is because I don't have what I consider to be a useful aim point.
You see, I learned to pocket balls and make shape. I can shoot between two balls to hit an object ball beyond the split because I have the ball to aim at (or a spot if I'm kicking).
Shooting between arbitrary obstacles doesn't teach anyone a thing about playing pool. If you want to dial in shooting straight, shoot from the spot to the middle diamond and make the cueball come back through the spot. Free, even on a bar table. Fast because there is nothing to set up. Accurate because the rail tells you if you have spin.
With any 'training' device, one has to ask whether the device is actually doing anything toward the final goal of being a better player. This isn't. Maybe it will give you a warm and fuzzy feeling, but nobody will care that you can roll a cueball through posts after you lose a match.
