I put a set of these on my 442 and it cured the knuckle bump problem. They take a little getting use to but they do reduce felt recoil.
All the way to an L Frame? Give the K frame a little love first!! Model 10’s and 19’s don’t get no love any more in the carry game.The best advice I can give is big people with large hands should by larger handguns. I mean one man's J frame is anothers L frame or G43 is anothers G29. Comprende usted?