Do any of you have experiences with this product? I am considering putting it on the Vette that I order, but am hesitant. Their web page raves about all of the advantages, but are there any drawbacks? Will the coloration of the paint under the Stone Guard be effected by not being allowed to "breathe"? Also, I have heard mentions of allowing paint to cure. Should I wait a certain length of time before installing this product, if at all. Thanks