Been shooting .45acp and 9mm for more years than I can remember. Forward to yesterday, G22 and G23 Generation 4. I fire about three hundred rounds of 180 grain .40S&W and now have a painful blister on the knuckle of the finger next to my index finger on my right hand. Never had an issue with recoil or such a problem. Is there some trick to firing a G22/G23?