I began playing with a 314v2 shaft and loved it. I found a deal on here for a Z2 shaft and never looked back. It just feels better in my bridge. I have smaller hands, so maybe that is the reason. If you struggle spinning the cue ball, I would look at the Z2, if not the 314v2 may be the way to go. Either way, it is going to be whatever YOU are most comfortable with.