I've seen a few guys pull this off. Namely Tom Carroll on the old yellow 92AA that Lummer's used in the Oz titles. When you see it for the first time you do a double take - did I really see that!!
It was a pretty decent size as well - 5-6' faces - crumbly top.
I imagine it helps to have a fuller nose to get a decent rebound off the top!
Practice, practice guys!!
