CG Ultimate bipe engine selection??
I have the YS 120 FZ in mine, 17x8 APC, weight is 9.75 lb. Radio gear is under the pilot to balance, plus rudder servo under stab.
If building again, I'd go for the new YS110, and look to save weight elsewhere. (like not use those Dubro brick engine mounts and such a large receiver battery).
Hmmm, if I carry on like this I'll talk myself into getting a new one...