Hand Grip during the stroke

Does anybody know of a video that one can review to assess ones hand grip on the paddle. The question I am trying to answer is: during the stroke does the paddle shaft rotate in a circular manner in the hand? I find myself doing this on my left hand only in order to get the proper angle of the paddle when setting up for the catch phase of the stroke. I use the small wing epic paddle at a setting of R 45. Any input would be very appreciated.

Nothing unusual in rotating the shaft in one hand or the other, paddle offset is personal preference.

You have mentioned great information, it really helpful for me.

Get a app called :"Coaches Eye" and film yourself, you can slow it down and analyze your grip, what ever you like.