I like that method Jim. Shows a lot of foresight. The spacing might not be uniform, but I'd bet it's less noticeable visually than having crooked stitches, or some stitches that aren't in line with the rest of the wing.

It's good to know that the fabric on the mounting plates actually helps the tips match the wing countour. I haven't trimmed and fitted mine; I was waiting until after it was covered so I could make sure it lined up with the covered surface correctly. I was worried about the opposite problem, thinking that the fabric thickness on the mounting strip might make the surface of the tip sit too high.