What are you guys using as the CG. The "plans" provided by Skymaster is a combination of different models. It says 90-110 mm behind the leading edge of the wing. On my model that puts it at the front bottom of the engine hatch cover. Is this correct?
Note that I did a similar modification as Sysiek showed above to move the main fuel cell backwards somewhat so it is not all in front of the CG. I have not decided yet what to do with the small header tank provided. I'll be using the Jet-Tech fuel cell connections instead of those provided.
AEHaas