Semi-scale GB R1?

I know there is the odd GB out there in stunt....mostly the Sportsman. Has anyone done a semi-scale R1? And if so....how scale was it? I built a free flight rubber power one once, and the prop almost didn't cover the cowl! Had a lot of fun with that beasty!

“I HAVE NEVER CRASHED BUT I HAVE PROVEN THE THEORY THAT GRAVITY SUCKS!”
Glenn Reach