I tack the perimeter first pulling everything as tight as I possibly can, I mean really tight then I iron and heat gun whats left with the exception of any rib area, I do this so the covering can move and slide as a whole during the super heating process, otherwise areas between the ribs can be too loose and other areas too tight. now that everything is tight, I heat the covering over the ribs and lock everything down. I learned to do this on the smaller stuff and carried over onto the big stuff. When I cover with plastic film, I use MonoKote and as most of you know, it is very difficult to cover with these days, but I use it anyway because with my methods of covering I can still make it look like paint and I do like that.

Bob