Hey everyone. Let me explain my situation, then ask the questions.

Giant Scale plane with weird characteristics I can't quite figure out. Stabs are NOT Adjustable. Wings are using dowels so can be adjusted but want to be careful as it will be a bit of work.
Balance point right where it should be. Down trim needed for straight and level flight. Down lines at idle pull to the canopy noticeably but come straight down vertically. Knife edge is good as far as elevator trim goes. Slight amount of roll coupling though. Vertical uplines are straight as best as I can tell both laterally and vertical.

I was thinking of using a very slight amount of either flaps (both ail down) or Spoilers (both ail up) as a test bed to see if wing incidence changes will help with the trim issues. My thinking is that overall incidence will change with this move even though the wing hasn't really been moved.

I can easily use washers on the engine also but can't seem to understand the down elevator and pulling to canopy issue. Maybe I'm just not seeing the problem.

Any suggestions??

Thanx

ed