[AT] Tractor painting--why the "misting?

[John Wilkens]

Painting "pros" and the instructions on paint cans are always 
advising to give the first fininsh coat a light mist coat--followed 
up shortly by a heavier coat.  What is this supposed to 
accomplish?  I can't seem to do it.  Every time I try the "misting" I 
just end up putting on a cover coat.  Seems to work OK.   Must be a 
reason?  I just tried wet sanding (primer coat) for the first time 
today and was surprised what I've been missing!  Next I'll try it on 
the first finish coat (using urethane for the first time too).  Sure 
glad I'm not painting a nice automobile.....I'd be a nervous wreck!   John W.

                    In the wide-open spaces of NE Oregon