Thanks for the replies. MTK, I did it exactly as you said. I used Robart hinges, so I cut my pieces to fit between them. Otherwise I can't get them to the center of the control surface or trailing edge. If you install your Robart hinges with the rounded hinge portion flush with the aileron, when moving up and down, the bevel on the aileron leading edge will go up and down with aileron movement. It doesn't stay exactly centered. I think that is why I have added resistance with the sealing strips. I do believe they will loosen up with use. I flexed them by hand several times and they move easier now. I more flexible covering material or tape would help also.