I took the dive today and sent payment to ValleyviewRC for the DL 50 and a couple props and was told to await the arrival of the 55's. I hope they run as well as the 50's, and I really don't need any more nose weight. But if everything is identical except a little more power, then heck yeah. It's replacing my broken ZDZ 50NG in a Great Planes Patty Extra 300. I'm anxious to get it back in the air. Anyone find specs for the 55 , please post, I can't find any yet.