When i first tried my TRS it was in december in vars/risoul resort in france. Icy compact, and it was raining for a few days before i arrived. There was one part, and it was on the most mellow run there (green) where people would just fall down like it was a benny hill sketch. I went over, but it was far from turning ice into powder. I still skidded.
Anyway, it's not so much for the edge hold, but the damage. Dunno if it's a good idea anyway. I'm thinking of just giving the board to the shop to have the holes filled and waxed but tell them to leave the edges alone.