Quoted:
I think the value of the finger grooves really become evident if you shoot a 1911 with a barrel of 4" or less. Anything full size and I'll pass, however I do have the rubber stippled-like Hogues on the 1911 I carry in my security job. It rides in a Safariland holster and I have no worries about sweat or moisture affecting my grip.
Yep. My .gov sized 1911 has checkered cocobolo grips that work great, but I think the combination of shorter grip, big hands, and short barrel causes MUCH more of a twist in the hands when firing. I tried straight grips on this one and it felt uncontrollable; switched to these and it's a whole different gun.
OTOH, at one time I tried these on the same gun:
but they're slick-sided and made the shifting grip during firing actually worse, not better. (They do look nice, though.)