my car is coming back from paint and I need to put the front and back glass in. I talked to NAPA and they told me that they carry a 3M product on a roll and a Martin SR roll (NAPA private label). Has anyone here had any experiences with them and also what size should I get, 5/16" or 3/8" ? Thanks for any advice, I've never put glass in before so any tips would be appreciated.