Rim Reducers

Does anybody have any *real* statistical evidence that rim reducers are effective? They claim,
"...trains you to be more accurate on all types of shots. Practicing on a 15" ring will significantly improve shooting accuracy when playing on a regulation 18" rim...."
Now I get the theory that once removed the rim "looks" larger, but I've got some hesitation about using them.

I want players to shoot with confidence and confidence comes from repeated success. I'm a little reluctant to use anything that limits a shooters success. I'd love to see a reverse study that uses larger rims in the offseason to see if it would increase a shooters confidence and build a "truer" release. I absolutely think that larger rims should be used at younger levels to increase the success rate and keep kids in the game until they have a chance to get good. Too many kids leave the game early because they can't make a dang basket.

I worked for a coach that has produced some great scorers and during the offseason he would loosen the rims as much as he could so the kids would get every bounce and would shoot a great %. By the time the season came around they knew that they were good shooters and, in many cases, it became a self-fulfilling prophesy.

Just thinkin' out loud...kind of !:?)