Very cool info! Since were on the decal placement topic.. What about the 1970 Swinger 340 stripe? I've seen those put on to far forward before. Ever notice the original advertisement for the 70 Swinger doesn't have a complete stripe?
http://i228.photobucket.com/albums/ee186/Turbo_Rampage/E59B6432-37A8-4100-8177-8AAF8710A4BF-5939-00000492AA2B2411_zpsed90b141.jpg It doesn't extend into the rear valance at all (plus it has the earlier headrests in it) You'd think they'd have it correct for a car advertisement, so i'm not surprised if every car is slightly different.
Soapy water is what they most likely used. I put all the decals on my 1989 Daytona Shelby (alot of decals!) and i used soap water with a squeegee (like the one you use for tinting windows) and that way you can slide the decal wherever you want, squeegee all the water/soap out from under it and then let it dry for a bit and then peel the paper off. I didn't have any bubbles, dirt trapped underneath or any issues of lifting doing it this way. If you go this method wait until all the water has evaporated off before trimming it or you can tear the decal since it wont be full adhered to the panel
