Anyone have an idea how many fps you lose with a fully compensated 40acp Glock? Seems like I was told you lose about 100fps but I honestly do not know? Also got a 9mm non-compensated barrel with the Glock; has anyone had any problems with either set up on the 23? Gun shoots and feels very stable and has much less recoil than I remember on a glock 40 so I guess the compensator works or I might be dreaming.