Stop using chop mat!! Your resin should not be gloopy...should be smooth like honey, but very thick.

Cut your cloth into 2" wide strips maybe 6" long. Another tip, cut down your brushes so that the bristles are only 1" long. It will help you get your air bubbles out.

Also, don't use a brushing action...use a stipple or tapping motion.

I'm telling you, a fiberglass roller and using knytex or cloth with fix your problems.....the reason I don't use chp mat any more....I had the exact same problems you did.

Also, keep in mind what you are building. If you are just building cosmetic pieces you don't always need to use something as strong as thick as chop mat. Typically when you build glass pieces, you stretch a material across a wood frame to build the initial shape. Coat that material (typically fleece, grille cloth or even auto carpet) with resin - then reinforce it - This way the "show" side of the part starts off with a realively smooth surface. Then you can add reinforcement to the back, and you don't need to worry about what the back side looks like.

It will also be very helpful to come back with a sharp razorblade and trim the stray fibers. Tim them before the 'glass fully cures - when it's still a bit soft, but not too tacky....that will help speed things up a bit for you.

That's all the tips I really have for you, if you can, throw up a picture...