When I had mine done with Autoglass, the first chap said I aint touching you car with out the strip across the top, then 2 days later the second chap said I have never done one of these before, I think my face said it all , he came back 30min later with reinforcements.. all good.
I will be needing a new one soon thanks to a stone putting a 2cm crack form a lorry. I even moved to the outside lane to avoid him... Bas74rd !!
Hey ho