At present they are held in place with aileron hinge tape. It holds pretty good but after about 50 cycles yesterday, I could see where it we beginning to lift. I did not prep the tape surface at all just stuck it on. Its easy enough to replace if needed but who wants to do that.
I have some small nylon hinges on the way along with a couple other potions to see what will work the best and last the longest.
Stuffing all the control linkage into the wing and still being able to remove it has been a little tough. I will have to install a panel on the bottom surface for access to the servo but think I may be able to put small holes to access the screw for the bell cranks.
Its all a work in progress.