I have only flown my UCD a couple of flights so far due to the weather, but so far it's done great. I am running 605 servos for everything but a 645MG on the rudder, and a standard servo for the throttle. I changed all the rods out to 4-40's, mounted the horizontal stab permanently to the fuse (no epoxy, I just lock tighted the bolts), used heavy duty servo arms everywhere but the throttle. I am also running a saito 100. The engine was tricky to tune, but once I got the low end tweeked, I now have no problems with loading up, or carb flooding. Right now I am using a 15x6 prop with a true turn spinner.