Originally Posted by MARTINSR
I have gotten to use the new dry stuff a lot more than ever though, that stuff is awesome! I don't use it so much for the straightness actually, I rely on feel for that. But for scratches from coarser paper and pin holes and stuff like that it is a great help. It is so fine that it will show you 120 scratches in bondo when sanded with 180 after, it's really an awesome way to go.
At the risk of you guys growing weary of my input... here's another thing to maybe try sometime, if you haven't already. A light fog of W&G remover over a freshly dry guide coated area, given time to then evaporate, creates a stained surface from a dust smeared one. The black really gets into the scratches that you're after that way, and doesn't go away when blown off. Maybe not practical for a small area but potentially more effective on a big job. Helps keep it honest, y'know? Reduces the need to reapply. Just food for thought. I believe dry guide coat has become the more popular type.