It's also Todd Jarrett's advice, sorta. Todd's is "grip it 20% tighter." When he comes around to check how your new tightened grip is coming he'll probably say, "grip it 20% tighter." A tighter grip solves a host of problems. I had been holding it like a golf club. That didn't get me anywhere, a gentle grip. So I go a bit harder now.
Now it's important that the trigger finger is relaxed to do the squeeze and surprise break. While I am gripping like mad I forget all about how hard I am holding on and concentrating on that finger. Which is probably what I am supposed to be doing. I am seeing some small incremental improvement.
Anyhow, Ritchie said:
"Trying to come to grips with my G20, I happened upon something which may apply to you too. I realized that when I tightened the lower part of my hand, the lower 2 fingers, that pressed the lower end of the Glock's backstrap into the heel of my hand. This sort of took up some slack in that area and prevented pulling shots low. YMMV, or it might work for you too. "
To help himself, he added some bulk to the backstrap, and sent me a picture of the testing prototype and permission to share it:
Obviously, he swapped out the surgical tape when he went "live" with it. (baseball tape!) If you look close there is a bit of leather there on the back. This added bulk, as I mentioned, like an arched mainspring housing on a 1911 as opposed to a straight housing. I prefer straight mainspring housings, but I'm not married to it. I can always switch back. I might like a little padding back there as I build up better callouses in the event I go the Full-Jarrett and aim to shoot a million rounds over 2 hour per day sessions for years to get truly good at shooting.