Almost every Kit Car magazine article I've read dealing with chopped glass was the spray on type, and hated by the author of the articles. Too heavy, uneven thickness, weakness and so forth. Maybe the opinions were so sharp because the articles I recall were for Porsche 356 Speedster replicas.
The old Starship hovercraft out of Canada is reported to have used a chopper gun to form the hull. It is regarded to be to heavy to be a good performer even with modern engines and fans.
http://www.decastris.com/hcc/builder...p/starship.htm
Olpro, do you know Dave Strollery by any chance (see link, 2nd paragraph)? Looks like a fun job, some nice work shown.
http://www.newportlaminates.com/design.html