body filler

Saw in another thread that I should be using auto glaze instead of lacquer putty for body work. Two questions:

1) In ignorance I've already used lacquer putty, in small amounts, filling door seams, etc. Am I already screwed?

2) Is the glaze thin enough to fill tiny imperfections (say 1/100" deep x 1/32" wide by 1/16" long)? I find it impossible to put on a small thin skin of the lacquer putty.

2a) (OK, I lied, this is really question #3) If the glaze won't work, any suggestions? I've heard of the armor guys using something called "Mr. Surfacer" Anybody familiar with that?

Thanks in advance, this forum is a great resource!

Source: http://cs.scaleautomag.com/SCACS/forums/thread/934902.aspx

Richard Attwood Manny Ayulo Luca Badoer Giancarlo Baghetti