I don't know how long it takes you to do this back glass. It use to take me forever. some of you may already do it this way. but if not I am sure you will want to try it this way next time. I normally would take all the tension away from the curve and try to shrink around it. and it just took forever. this one I anchored it a little high to get as much tension up top as I could without going over board. (oh and this is a dry shrink not wet ) then I pulled all the tension from the side of the curve. And put it on the curve and shrunk it out there. by doing it on the curve I could spread it out over towards the middle of the glass.
And I never let any of it go to the opposite side of the curve. then I just shrunk the top as normal. when I installed it I did have a slight pull back near the curves and I knew that I would. but that is fine 10 seconds of heat on each side and they layed right down. the whole process shrink and install took me around 20 min's. only took that long because it was the first one I did this way. so I was taking my time and making sure not to squeege the wrong way and crease it. next one should be faster . I know I am not very good at explaining titn procedures via internet. But I hope that you can get the idea and make your next saturn sl alot easier