I love the idea of retracts on the 70" Revolver. Would make for an even sleeker plane and would look very cool. Would probably add some weight, though. And would also then have to be very careful on landings. One of my two DLE20s (the one on the Rev 70) is running great - using an APC 15x10 now (better speed and still good vertical). My other DLE20 has been running rough and cutting out. That's going to go into a 65" Phoenix Edge. Need to look closer at that engine. Pretty sure I recently rebuilt the carb. Maybe the reeds need replacing. Or, if I replace the carb maybe I'll replace it with a DLE30 carb. And maybe try swapping in a different EI (one from Hobby King).

btw - the roll rate of the Rev 70 is plenty fast, if you have your throws set high enough. Don't think it's necessary to clip the wings for that.