Yeah, we've got a player who is infamous for rolling 1's, both with her to-hit die and her damage die. Letting her re-roll 1's makes a huge difference to her enjoyment of the game, much more so than the time spent detracts from mine.
That said, the math comes out precisely the same for "1d12, reroll 1's and 2's" and "1d10+2", so if you're determined to modify it, that's the way to go.
That said, the math comes out precisely the same for "1d12, reroll 1's and 2's" and "1d10+2", so if you're determined to modify it, that's the way to go.