Romulus, I'd recommend a group gripper but not alone unless you already have a tight bushing. I've experimented a few years ago with a lot of guns that came in for accuracy work. The bushing alone always increased accuracy. The gripper alone usually helped but neither was as good alone as they were together. While it is certainly one way to do it, I don't use longer links to increase lock up because it can lead to problems in the other direction as BBBBill mentioned. I only use them when the existing link is too short (binds the slide stop pin) for proper barrel fit. George