One of the guys in our group has Enlow…. hugemongous… grips on all his clubs. Loves them and they have helped his game. My set of Eye 2's had jumbo grips on them when I picked them up. Thought that would give me a good chance to try them. At some point, I will pull them and replace with midsize. Everything else I have is midsize. Just can't seem to get used to the oversize/jumbo grips... and certainly can no longer play standard diameter grips.
I have jumbo grips. I use the tacki-mac arthritic grips. I'm not sure if my game has improved because of the oversized grips, but they feel great to me.