Closing Gaps

I really wanted to work on getting gaps as tight as possible. It's nearly impossible for fiberglass parts to come out of the mold and fit perfectly without modification. The Sling manual has you use straps and other mechanical devices to bring the tips into place and close the gaps between parts. There's nothing wrong with these techniques, but they won't get you to a really tight-fit finish. I ended up using JB Weld to pinch and close the gaps at the trailing edge of the part, then filled the gaps between the parts with epoxy and micro-balloons to finish the job. Sanding and fairing complete the job.