I have tried them out, my local pro uses them exclusively, and several proshop customers use a "hybrid" version of the vaccu-grips. I think its based upon personal preference. With the "regular" vaccu-grips, two sizes were too tight for me. I preferred using 1.5 sizes smaller (normal grips are 47/64 and 45/64... and I would use 11/16 and 21/32). I found that the clear grips seemed to work better as they tended to have a little more elasticity than the regular grips.
With that being said, I didn't really like them. I found that because they were tight on my fingers, I tended to "grab" the ball at the bottom of the swing. I guess I just had trouble getting my fingers out cleanly. Our local pro is a lower rev player and he loves them (I think they help him get a little more on the ball).
We have several customers who like a hybrid version of the vaccu-grips. They drill the finger holes 1 size larger than normal (1"), don't use the plastic vaccu-sleeves, and only use grips 1/2 to 1 size smaller (and only glueing them at the bottoms like normal). The larger hole gives the grips room to expand, but not to the extent of the regular vaccu's. With the smaller holes and not using the sleeve, I don't think you get as much of a vacuum on the fingers.. maybe helping to get out easier?
S^2
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"Chuck Norris doesn't say "who's your daddy", because he knows the answer."
-borrowed from ChuckNorrisFacts.com
