I take you point Mike, but it does need a skilful approach to position decals "dry". I've used the "wet" method since I watched the windows in our electronics section being covered in tinted film. I think the advantage of the wet approach is that the decal can be eased where needed to remove wrinkles and even be lifted off and re-positioned. Its like a lot of modelling tips and tricks, its a case of using the one that you're comfortable with.