based on my experience with it....i do feel that fiberglass would hold up, especially at 3 or 4 layers thick w\o any problems, but i'll just have to try it for myself at a later date.
i'ld love to help you in the r+d of this shield but i've got so much on my plate as it is(tail lights, sail panels, rear reflector, side markers...and the list goes on) that i just can't.
sorry i can't help...as much as i want to
99 SE V6\5spd - 156 HP\157 TQ 15.166-90.84
Totaled 02/12/06
99 SVT # 1571 - 175 HP\153 TQ 14.999-91.88
Born 3/24/99 Reborn 3/18/06
Pietenpol Racing Technologies project vehicle
90 Festiva L 5spd, Blue(not for long), 103k