I am just about finished with my Four Star 60 build. This is my first build and covering job, and so far it has been looking great. I have ran into a problem with the stringer area behind the headrest though. I have a piece of Monocoat all sealed around the edges and I have begun to shrink it with a heat gun, but it won't get tight enough. There are a lot of wrinkles in it and it looks horrible. It's not too bad right behind the HR, but as it goes further back the looser and uglier it gets. How can I shrink this up without re-doing it? I have a heat gun and an iron. Thanks.