I heard got forward, backup, semi spinner & etc. But how to execute them? To the best & right way. This type of bowling form is always a mystery to me.
Actually there are two known types i know of, the rest I'm not sure what you mean haha. But if I'm not wrong Taiwan Spinner is known Helicopter (In the states, will come to why l8r) and its the normal straight ball.
The other spinner is the American Spinner where they mean that there are more sideroll than anything else. I'm not sure what they mean but in any case its moves like normal hook.