Steve i used to be a glaizer for 17 years.They sell a cheap tool for
scoring plastic. 1/8 is easy use a stright edge and score it several
times and snap it over the sharp edge of a counter top of sheet of
plywood. You can cut some plastics with a saw but sometimes burning
accurs and alot of times it leaves hair line cracks the will trave over
time But by all means leave the protective over on untill your ready
to install it
Hope this helps