Anybody using it? It really looks like it would help my playing because I do a lot of pickwork with the ocational finger picking intros and such. My only concern is that the right side of my index finger has a calluse on the right side from slapping the string while holding a pick. Is the ring on the Jamkat gonna get in the way? I don't feel like spending 20 bucks on something that im not gonna use. Opinions greatly appreciated.