Argh - paint prep is driving me crazy!

Every time I think I'm ready for a final roll, I find more stuff to fix. Most of this is related to blocksanding areas that then show brand new low-spots (or high spots). I've primed many of these areas, and sanded some more, but they just aren't perfect.

Question - I'm considering brushing rustoleum straight from the can onto my problem areas to use the paint to fill in the low spots. Will this work?

Most of these areas are probably 2 inches square or so - a weird spot in the middle that I just can't get right with primer and block sanding.


I figured if I brushed it on heavy in my trouble spots, let it dry well (a day or two) and then rolled over it, it should be OK. Has anyone else had this issue or am I just too much of a perfectionist?

FYI - this is satin black I'm working with, not gloss, if that makes a difference.

Help! Thanks!