Yeah no worries. Solargard is the only film Ive tried but it seems from the youtube videos I've inspected.. my film doesn't move as quite well. It doesn't shrink or stretch at all. It's very thick and sturdy. I tried to stretch some old film with my hands just pulling on it and it really has no give.
I'll try a different film. Even when I put it on the window before I squeegee it, it has a lot more fingers than some of the videos I've seen and I think it's the film