As long as you keep placing the sticky mark on the OB the student will always know exactly where to aim, as long the sticky is in the right place. But it's not practical to mark the spot on every shot. When you remove the sticky and the student has to visualize the spot, it'll take a few thousand shots before they really start to get it.
My whole point with aiming systems is that if a system allows the player to know exactly where to aim, the player will pocket a greater percentage of those thousands of shots, which will allow him/her to develop a feel for it much quicker. This doesn't apply to systems that require tons of shots just to get it working. I mean, if you work everyday for a month or two before finally understanding how your aiming system works, you probably could've already improved using ghostball or contact points throughout this same time period.
I believe that's what you're saying, and I agree with that conclusion. But I don't believe all aiming systems can be lumped into that category.
Well, I agree that it's a bit of a problem moving the spot around, so maybe you just use a red circle CB for training purposes to make it practical. My proposition is that after a while the student will grasp the concept and wouldn't need the visual. I doubt it would take thousands of shots, perhaps a few dozen -- I just don't believe it's all that hard.
What's hard is hitting that spot consistently while playing position. It's the stuff you're doing with the CB that makes it tough and that's what takes thousands of shots and years to learn.
Lou Figueroa