Congratulations on a successful maiden of your Eternity. I have one on the way. Regarding placement of your Mezon ESC and back up battery...….were they placed at the rear of the battery compartment to achieve your desired CG? In other words, if they had been mounted farther forward, would you have had a balance issue? I'll be using a Kontronik Jive Pro 120A ESC with a backup battery. That combination weighs about the same as your setup so I was just wondering about equipment placement and CG.
Mike