I did not sand a relief for easier opening. Yes I know, it's pretty basic stuff, but it was my first try at modifying an Opinel. So I kept it basic, the forced patina was fun to do. Overall, I'm pleased with the result and I now have a unique Opinel in my collection. Will not be my last ;-)
That was not meant to be a slur in any way. Those are the best and most logical mods. I used to mod Opinels a fair bit and I've done some pretty funky things which didn't work out.