Boy, do I feel stupid, or at least I know I wasn't paying attention. I just read the original post and saw the word SUPER in front of the word Blackhawk, which means my response was, shall we say, a little off. Oops.
On the other hand, maybe I can redeem myself with at least one pertainate observation. A long time ago, I thought the original grips on my Blackhawk .41 mag were also too small (I got over it and have used them a lot for over 20 yrs). I put Packmeyer black rubber grips on it and that seemed to fit much better. That is until I shot some fire-breathers through the gun. We're talking a NM Blackhawk with an ALUMINUM grip frame and a 4 5/8" barrel and a 225 gr. bullet going in the 1300 fps ball park. The recoil was quite manageable otherwise, but it put skid-marks on the palms of my hands as the gun rolled up like a SA will do.