Hogue's Monogrip has worked well for me...just about eliminates the 2nd knuckle whack on my J-Frame M-60 3" bbl'd Smith with stout loads. And while I've tried the Pachmayr's Compac Professionals I found them 'sticky' for CC use (they'd allow my cover garment to ride up)...but that could have been that I didn't give them a thorough enough cleaning or whatever, also they felt a bit 'fatter', midsection in my palm than the Monogrips.
Both are fugly for sure, being rubber, but the only wood grips that ever came close to them in recoil management & that I've tried extensively were Ahrends finger grooves. I have one set on a K-frame M-19 (in Birdseye Maple), that work
almost as well as the Mono's.
My take on grip design is that few grip makers, wood or rubber, get the 2nd finger radius down low enough or with just the right radius to prevent 2nd finger rap against the trigger guard. I can take a lot more slap up in the web than I can with the 2nd knuckle so that poor digit really gets a beating with all of my DA revolvers using heavy loads.
It's a trade off, I know, in that if the radius is low enough to help with the knuckle rap, it also forces the gun up in the hand, resulting in a higher bore axis with its increased muzzle flip. That's a prescription for slower 2nd shots...not good in a CC piece.
In the pic below, note the difference in the Mono's on my M-60 Smith and how low they get the support finger with respect to the trigger guard..no rap with that design. But without really big hands, the web between the thumb and trigger finger will be positioned much lower, effectively raising the bore axis.
Now look at this set of early S&W combat grips on my M-63, and how high that 2nd finger support radius is. It exposes most of the trigger guard which results in a rap on the 2nd finger. The M-63 is of course a .22 with no recoil, but when that same set of grips are on the M-60 with even moderate loads...it's down right painful.
All that said, and YMMv....but I wish I'd invested in a couple more sets of Ahrend's stocks for a few my other, not so heavy recoiling, K's and N's. In the example I have of a set of his finger grooved combats, the radius contacts the rear of the trigger guard below the mid point of the trigger, but not so low as to significantly raise the bore axis....
Ck out
V8Stang's post #32 for Ahrend's grips and note the radius and intersection of the trigger guard and grip...about as good as you'll find anywhere for a trade off between bore axis/web height and 2nd finger knuckle rap. Best Regards, Rod