: I will likely use a braided nylon or poly rope, 1/2" or so, which will
: be stitched on as well with a doubled line of dental floss, which is what
: was used to sew the canvas skin.

Although I haven't made this type of combing I would think that you probably won't get a good adhesion to nylon rope. Goop would soak through the fibers and also create a half round cradle for the rope to sit in. Along with your stitching it should be very strong.

If you try this and it fails, please eat this email and remember, I said NOTHING.

PaulMon