Probably a dumb question (not my first nor last), but what is the best way to make a smooth face on a trigger less smooth (short of taking the gun apart and having checkering or grooves machined into it)?
Use sand paper of various grits until you get the texture you want. I'm not sure why you want a rough face on the trigger though, most ppl want to smooth the trigger face.
If it is poly, try to stipple it and then sand it to the texture you want. If it is metal, maybe use a small file to make a crosshatching style texture? I don't know for sure what I would do on a metal trigger.
They removed my fingerprints when I went into the witness-protection program, and I can't get any traction on a trigger.
No, it just seems like my finger wants to slip from the "end pad" to the "first knuckle" position sometimes, especially if my hands are sweaty and I'm rapid-firing. Maybe I just need to slow down and wipe my finger from time to time.