I picked up one of the Uncle Mike's grips to see if I liked it better than grip tape. My grip tape peeled off easily enough, but it was nearly impossible to get all of the sticky residue off the gun, even with alcohol. I must have different skateboard tape than you, tracker.
Anyway, while I was putting the Uncle Mike's on, a chunk of it broke off. I was of course stretching it to get it on, but not all that much. I've put several of the Hogue slip on grips on other guns and stretched them much more than that with no problems. It seems to me the material used for the Uncle Mike's is not of the same quality as the Hogues.
Oh well, it's still functional so I can at least try it out to see how I like it.