Not to hijack the thread, but my question is related:
How many layers of fiberglass do people typically use? On the parts that I've 'glassed, I've used just one. However, I'm contemplating going back and adding another layer. Needless to say, that's more fiberglass/resin that I would need to purchase, and more time/labor placed between me and the Bondo stage of my armor. Is it just a qualitative sort of thing, where you just say, "meh, this is strong enough," or is there a sort of standard that people typically use (i.e. xx layers of fiberglass per piece)?