I am building a foam core wing. I have sheeted it and attached the leading and trailing edges, both of which are rectangular and need to be sanded to shape. The instructions say to create a straight line down the center of the leading edge and to simply sand flush with the rest of the wing following the natural curve of the wing. Here's the problem. When I did this the trailing edge dissapeared, it became paper thin no matter how carefully I sanded it. So I squared it off with sand paper, leaving a aprox. 1/32" instead of the paper thin taper but now my wing, leading to trailing, is about a 1/4" to short in the tip and about a 1/8 " too short at the root. So when all is said and done my trailing edge is about 1/2" wide rather than 3/4" wide.

What should I do?

1. Should I just leave it and make sure both sides of the wing have an equal trailing edge size? That is sand the entire trailing edge to 1/2" in order to maintian the original overall relative shape of the wing.

2. Should I just leave it be the way it is? That is slightly shorter in the tip

3. Should I cut of the whole trailing edge and try to thicken up the wing by adding a piece of 1/32" balsa plank and feathering it to the shape of the wing?

This would give me a thicker trailing edge to start with and a slightly smaller angle on a new piece of edge stock. I am sure that my wing would fall within the specs on my plans but I am concerned that this may change the air foil and add extra weight. I was thinking about adding the extra balsa to the bottom of the trailing edge of the wing this would flatten out the air foil there a bit but I figure better a little flatter on the bottom than on the top. Am I being a crazy perfectionist? Should I just leave it alone? Or is there good reason to try and do anything possible in order to stay true to the plan and keep a 3/4 trailing edge?
Thanks for any words of wisdom. I'm sick of just looking at them and fiddling around with ideas. I want to get building!