Steve, I came across a method on the net a few days ago and tried it out. I think its an excellent way to duplicate the stitching. The entire method is pretty straight forward and looks good. Essentially you make a jig using a flat board and put small nails along each side, spaced to the required amount to give you proper spacing. For example rib stitching on a fabric plane may be 2 inches apart. You would space your nails .66 inches apart (1/3 of 2 inches) . These board and row of nails are at least as wide as your wing chord. You wind thread back and forth around the nails creating rows down the length of the board. The person who's method I copied used printer paper under the thread and then thinned white glue to hold the thread in place. I used coverite with the adhesive side down and 3M Super 77 Spray adhesive. Either method will work. Once your thread is affixed to the fabric or paper you slice it in ribbons as wide as your rib or rib cap. You then affix it over the rib and then put your pinking tap over that. You end up with rib tape, rib stitching, and pinking tape just like the full scale. Here are a few pictures to aid in my description. One is of the Jig and another of an Aileron I just covered using this method.