Greg Esres wrote:
I've managed to paint a glass smooth, brush-stroke free finish using
semi-gloss oil, but there are a few dust specks that I'd like to get
rid of. I just bought some 1500 grit sandpaper and some rubbing
compound, but I haven't tried them yet. Any advice on how to proceed
appreciated.

A brand new razor blade scraper. I got dust on my paint roller while
painting a ceiling; didn't see it until it was dry. Gave it a shave.
Worked nicely, but I didn't have a "glass smoothe" surface to mar )