Rcpilet,

Just to expand a bit on what khodges said about rib tapes. I haven't tried koverall for rib tapes, but I can imagine the plethora of 'fuzzies' that would accompany the attempt. Solartex works well for rib tapes. Try using a wheeled fabric cutter with a pinked wheel. There are several sizes of pinked wheels, so you can find a pinking size that fits.

papermache