i hear you? One site. Has a ton of talk, and here not a lot of people.
Not ia pro but did you take the time to set the plane up and trim?
ii turn on craft let sit on a level surface, And see visually how the elevator looks? I work on the pushrods u bend. i do a short test flight and trim as needed. Repeat till trimmed. I as well get COG. Correct. Mark where my sweet spot is at till I get it near, then I electronically trim