One minor issue I have when cutting glass fabric is the warps (individual bundles of glass fibers) are pushed around and distorted if I am impatient and push the blades of regular scissors into the fabric faster than I am shearing. Dawna suggested trying one of these rotary scissors popular with quilt makers to cut the glass fabric. I found it worked great. I used a piece of aluminum bar stock as the base to roll over so I wouldn't tear up my work table. Since the cutter rolls over the warps as it cuts, none of the material moves. The result is a very clean cut with no distorted weave. So far I have just cut straight lines in one of the directions of the weave. But I think this will work just as well when cutting at an angle to the weave or along curves. I am not sure how long this blade will last, but they are pretty inexpensive (at least compared to $50 a pair, industrial grade, fiberglass cutting shears). Of course, when I am trimming glass on the hull and can't move the material to the work table, I just have to be careful with my regular old shears.
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