VZ grips CEO sent me an email and is sending another set of grips and an envelope for me to return the ones I have. I'll see how those work with the O rings. There were initial posts that the VZ's were a few thousands too deep early on, and mine may have been in that group. I'll let everyone know what happens with the new ones, but frankly, I like the grips so much that if necessary, I'll take a very thin piece of aluminum (probably cut from a soft drink can) and epoxy it into place....you would need only something in the order of 1/4" wide and just over 1/2" long placed properly. Easy to do...heck, mine worked fine with just a little tape in place (but not a permanent solution since cleaning solution will get into the tape eventually).