Hey David after struggling to get my Electric Impact under the 11lb limit with the 40oz. Lipo's that we must run these numbers seem like a piece of cake! I'm really looking forward to seeing this new engine. It's great that we have so many options. Electric with outrunners and inrunners. OS 140's and 160's, YS DZ's and now light weight and powerful gas engines. It sure makes things more interesting. Right now I'm most fired up with my E. plane but I still have the YS option available if I change my mind. Mike Mueller