
The root edges of the wing fins didn't really match the body tube.
I ended up sanding a slight curve in the root edge until a better fit was obtained.

After sanding the root edge, the fit is better.

Sometimes after drying, a three ply laminated fin might have a slight warp.
Before gluing, sight down the root edges and gently bend the fin to a straight line.
The fin on the left has been straightened.
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