Flew the WH Edge 540 today with the wing incidence raised 0.75 degree (0 degree, match with the deck-line), and elevators set at neural. The "nose heavy" feeling is completely gone. The horizontal line is as straight as it can be. No up-elevator trim needed at all. I would think the problem is fixed! Tried IMAC 2006 sportsman sequence and it flew definitely better.

The lesson learned: measure the incidence at the root of the wing.

As far as pattern or IMAC style flying is concerned, I would think, as remarked by top TOC/F3A competitors, removal of any bad flying characteristics is a necessity. It makes pilot's job easier.

--qc