Derek,
i am inclined to say yes.
the Pre and post-shading are simply extra coats done (logically) before or after.
Pre-shading requires no great control or super fine line work. from what i have seen,
if you can spray a line arounf 3/8 of an inch down a seam or through a corner,
you should be fine.
(i can't pre-shade because i am too dim to not completely cover the dark parts
w/ the base coat)
post shading does not require a very fine line either, but you need to be set up
so you can control precisely where you are painting, and that there be no spits
and spatters. this is because you will need to start on a panel, away from the edge
(if you are lightenening the middle) w/o painting a line to it from the outside.
i have made out ok w/ the most despised (by others) airbrush on the forum - the Aztek.
so you should be fine, as long as you can adjust paint & pressure to get adecent control.