Hi Jake,
Don't be scared - it's all gonna be alright...

I was co-owner of Polaris Sail Loft, Holtsville, Long Island for about 10 years. We made over a thousand sails before we finally closed the business (too much work, too little profit). The request for a low-budget Tyvec sail was a strange one, and we were skeptical. However, the customer is always right. We plotted directly on the Tyvec (Using a Carlson plotter), used transfer adhesive for all the seams and only sewed the corner patches, where we used some leftover scraps of dacron. We were very happy with the results. The customer was too.

Steve
Hobie FX-1, Sail #211