Thanks bubbagates

The battery Ive got is a square so at the moment can't fit next to tank. The engine is tower 60 2 cycle so it's light which like you said is the main problem most people seem to use heaver four cycle. I did get it up last night but only checked it out with full tank of fuel then landed before to empty so not to push my luck. But ? Curious if many other planes had been setting thiers back and how they fly.
Anyway it seems ok cause it did what ever I wanted as I get more comforable see how it responds on an empty tank if it get as you say twitchy. It just seems the CG was way forward in instruction compared to others Ive built. Thanks for responds.