My Rev A Air was stolen a few months ago and I recently replaced it with a Rev B SSD Air. I had Invisible Shield on my old Air as I use it quite a bit at the race track and at work in my factory. When I got the new one I thought I try it clean. Yuck. It was too slippery. I've just fitted I.S. and quite proud of the clean job I did. No bubbles and it looks very sleek. Now I can easily grab my Air with one hand without fear of it sliding out of my fingers. It no longer scratches the roof of my race car. I think it actually looks cooler. Happy Zaggs customer. Anyone else a fan?