For basketball coaches/experts

Okay who uses the shooters' rims that mount on the hoop and make a smaller target for the shooter? I was wondering how much good these actually do. The concept seems solid, aim for the smaller hole and increase the shot arc so it should be easier with the regulation rim. But I don't know.

I have been to a lot of practices and summer workouts and tryouts, both boys and girls (I had one daughter complete her hs basketball career this year and another one about to start).

Many places have them mounted on rims, especially in summer ball, but what they seem to mainly do is frustrate the hell out of a lot of kids. I have been watching, and most of the players won't take a shot on them unless forced to by the coach, even kids who are very good shooters. I have asked some of them about the rings, and they say they are "too hard," they don't seem to feel that it helps.

So I wonder what coaches think of these, and who has had success using them and how are you incorporating them into practice. Because most kids won't use them voluntarily.

Just curious. Thanks.