OK--sorry about the long lead time--don't ask. Regardless, I'm back and my TwinAir is screaming to me "BUILD ME"! So, I started today. I started laying up the wing and I have a problem. The instructions say to cut the leading eadge bottom sheeting to 3 3/8 inch wide. I do that and lay it up on the plans and it looks like too much material. In other words, the sheet is too wide. The leading edge sheet is supposed to go half way across the main spar. At 3 3/8 inch wide, it goes across the entire spar. Any suggestions?