I think you're not quite on target on that one. Because of the golden age styling, people think of the hog as only a "fly around the patch" barnstormer. Admittedly, it's no 3D machine, although I try,
NONE of the .60 size planes really are . My Hog is a super performer.
The .91 on heli fuel is fantastic. I run the same 30% fuel through a Saito 100 on my Chipmunk and the engines just love it.
http://www.devino.org/mark/airplanepics/hog.jpg
Just my $.02