I also am no expert but as I am scratch building a 25% Edge I have been looking into what other Edges use. I was surprised that they are different. Remember the Edge is not a low or high wing design. The wing, engine, and stab are pretty close to centerline. Most recommend 1 to 2 degrees of right thrust with no down thrust. Aerowerks who sell a very successful 60-90 size recommends 2 degrees right and 1/2 up. The up surprise's me . He also responds this, "The thrust depends on the power of the engine and the weight of the model. The more power the more thrust you will need."

I think bottom line if you want it trimmed the best some flight experimenting is necessary to match your combination.