ORIGINAL: Buckmeister
I know a couple of guys who run DA 85's in 40-55 lb warbirds. They run them hard (no hovering obviously) and they get better and better with every run. It would be my second choice after a radial that I can't afford (unless I quit making my house payments). I would buy the DA 85 myself after watching them closely for a couple of years.
+1 on this. I have a couple friends who have 85's on the H9 Sukhois (blue with the yellow shnozz). If you believe the online chatter, they were supposed to shake the light airframes to pieces. Nope. Great engines. I would buy one also after watching them perform in those birds.