Hi Vid -
I had wanted to weigh in with thanks for all you do, and the advice you offer.
I did want to ask your opinion on backglasses. Do you recommend any treatment to the back side of the glass if it is in good condition? I know some spray Triple-Thick on the back. I have a couple glasses in good, original condition and I would like to keep them that way. But I wouldn't want a layer of triple-thick or 2pac to cause more damage down the road