Some VERY savvy folks above like snubbyfan and cal44 are fans of the J-frame Compacs, I'm not. For their size, they are very heavy, IMO, and also quite thick across the middle. For the life of me, I can't see how snubbyfan pocket-carries his snub with these grips.
Yes, they cover the backstrap and cushion recoil, but they add 1/4 pound of weight to guns that are designed to be light. I, and other LEOs have had a problem with the metal inserts of the Pach grips somehow attracting moisture under the grip, causing frame rust. Altho out-of-print, the Sile rubber grips were thinner and lighter, with a fiberglass insert, much superior to the Compacs.