Correct Neutral slab aileron position

[Jim Cole]

I've completed a scratch built airplane with flat bottom foam core wing. I flew it without ailerons and it flew pretty well. I have never flow with ailerons so I installed them but am unsure on a flat bottom (Clark-Y) type wing where to position slab type ailerons for neutral flying. You will see in one of the gallery pictures that I have the slab ailerons positioned such that they follow the contour of the top of the wing. If anyone has some ideas I would sure appreciate it. check out the URLs below for links to the pictures. Thanks

http://www.picpile.com/uploads/tn639621109.jpg (http://www.picpile.com/gallery.php?id=805010)

[Marion]

I'd keep them flat with the bottom of the wing.....

[Jim Cole]

I couldn't decide to go with the contour of the top of the wing to just keep it flat with the botton of the wing. Thanks for your thoughts.