From what I have read you should clean the playfield first, put down two coats of wax and then clean again before installing Mylar. I saw a post saying to spray Rapid Tac on the sticky side of the Mylar before installing so as to help you get it exactly where you want it. I thought I remember someone saying to just use water with a couple of drops of dishwashing liquid in it. Will this work just as good? Didn't want to wait to get the Rapid Tac or spend the $10. if this works just as good. Anybody else done this, and does it work ok? Or should I just order the Rapid Tac?