The only thing I ever use spinning for is to retain lucidity the instant I feel it starting to fade away. I think some people are trying to use it for things it's not so well-suited for. It can be used for transformation of the dream scenery but I think that's best to be considered a side-effect and a potential failure of the intended usage, preventing the loss of lucidity.
Some people have good success when trying to use it to change the dream world but that's only happened a few times for me. And those few times were only failures of attempts to "artificially" extend the duration of lucidity.