All of Mike's suggestions sound good to me. After a quick ground check of your stab incidence for a significant error I'd suggest that you try adjusting your CG as your first adjustment. The reason I'd do this first is that you probably have a fixed stab and you said that someone observed that each time you change your wing incidence you're simply offsetting it with elevator.

CG and wing incidence are related. If your CG is too far forward it makes your plane nose heavy which means that you have to have excess elevator to keep the nose from dropping. When you go into a downline the gravitational forces on the plane are different which results in the additional elevator causing the plane to move towards the canopy. By moving the CG back you don't need as much elevator in level flight which can reduce the drift to the canopy.

Some other questions:

1. When trimmed for level flight does you elevator seem to be trimmed to a level position or is it trimmed up slightly?

2. When you fly inverted does it require a lot of down to keep the nose level?

It may be wise to try moving your CG back and setting your wings back to a 0 deg incidence and then re-trim it from there.

BTW, did you ever work out the excess right trim needed in your ailerons?


KeithB