What is the difference in the path of a backhand roller and a side arm roller (assuming a flat groud and no obstacles)?
A roller "should" end up on its top. Right hand, back hand roller will move to the right at the end... Right hand side arm will end up to the left*.
Also, I heard someone mention something about a hook thumb roller. How do I throw that? I can kinda throw a thumb hook tomahwk. Is it anything like that?
All thumb hook shots are related.
* Your mileage may vary.