I did a compound radius on a 1960 Strat because the guy putting in the frets was unwilling "to mess with it"... It had no frets to speak of when I got it, and even though everybody said don't do it, I had a guy with a small shop replace the frets, but I wanted it to play like my SG, as in doing huge bends without fretting out, so I wanted the frets flatter, and he let me do it with his files.
Never even heard of a compound radius, years before we even had pagers...
I later sold the guitar to the most eminent collector in the area, and out of the blue he says "Who did the frets on that? It's like magic..."