On my 642 for concealed carry the factory grips do the job I'm not sure about the CT grips yet. The factory grips are only good for 40 or so rounds after that the hand no longer wants to give true accuracy the Hogue's that cover the blackstrap work very well but I don't like them for pocket carry but for the range they hold up for the monthly hundred or so round. I have large hands and typically shoot at 20-25 yards which calls for me to hold the gun a little harder with the factory grips the Hogue's relieve that, but with the factory grips and 5 rounds at 5-10 yards -say- bye-bye target.