I found that by adding a small amount of wing saddle tape to line the wing to the stab works perfect. The wing and stab are parrallel to each other when the one wing is "lowered" slightly. I wonder why the instructions don't mention this angle when they tell you to glue things together. They mention equal distances from wing TE to each side of stab TE...and they mention verical fin square to stab...but they fail to mention the angle of stab in relation to the wing. I know previous arf's I've built mention this angle, and I should have remembered but didn't...Oh well, build and learn I guess.