Hi. I am in Florida and have a harbor grey 2012 elantra. I have been using Blackfire Crystal Seal, Poly Spray, and Wash Shampoo. With winter coming I bought Collinite 845 as I was alittle afraid of 476 and FK1000 wouldn't do trim and could leave white residue in cracks. From the great reviews here I put 845 on window rubber and trim and loved it. But with one panel with 845 on it it looked dull at certain angles. I really like the Crystal Seal look and was wondering if 476 would get the look back (glow, I guess). Also, I wondered about Duragloss 105. Please! Give me your thoughts and suggestions. Thank You.