So, once upon a time, I was involved in an intarw3bz back'n'forth at TheFiringLine with Pat Rogers.
He had made some statement in an article about how he didn't really care for a lot of the features on my Springfield Professional pistol. As a very happy Pro toter, I asked what his beefs were with the gun. One of the things he came back with was the sharp, 20lpi checkering.
I said that I liked the coarse checkering, because it helped my girlie hands get a grip on the pistol, even when they were sweaty or oily or slathered with Bullfrog SPF 30. He countered that checkering that coarse tore hell out of one's hands at gun school. I parried with the fact that A) It had never bothered me, even in several-hour-long range sessions, and B) I bought it to carry, not for gun school; I had other, more-or-less identically set-up guns for school.
Then I sold almost all my 1911's (not counting the still-unfinished Sistema project gun), except for the Pro and the '66 Colt, both of which sport... Can you guess? That's right; razor-sharp 20lpi checkering on the frontstrap.
This being a summertime class, with temperatures near 90 and humidity best described as "sticky", my hands were all nice and sweaty and soft. Another guess for you: Who was sporting a bandaid on the second joint of her strong-hand pinkie by the middle of day two to ward off an incipient raw spot?
Note to self: Plan on bandaids or a shooting glove unless or until I get a replacement for my old dedicated trainer. One with a smooth frontstrap.