Well, that's cool. Good to know it's not traumatic. I'm sure the hens appreciate it! For my roos, I was just thinking of taping the spurs or filing the tips down with a smooth wood file. I'm more worried about the little scrums they have with each other more than hen damage. Of course, they are...
Good job (I would not ever) just make sure his legs don't get infected. Pack those holes with triple antibiotic and maybe even bandage for a couple days until it's scabbed.