RE: AeroWorks Edge 540T 46-60?
I've noticed more guys at our field buying the DLE20cc because of it's power & lighter weight than other gassers. The price is good, too.
We had one guy using an OS 75AX, but he's switched to the DLE 20cc and seems to be happier, but he has it propped for speed more than aerobatic manoeuvers. It does make this plane pretty heavy in flight.