This week's tip:
When tinting a convertible top back glass, I cut the window as usual, but I don't cut the bottom. I wait to cut the bottom until after I install it. By keeping it uncut I have more "play" to avoid light gaps. After I get the film in place I squeegee a small area in the middle, then cut the excess off the bottom. I've noticed over the years that on some convertible tops no matter how carefully I cut it I was still getting light gaps after I install the film. So I started doing it this way and have'nt had a problem since.