If you use that stuff (and personally i hate it), be sure to stir it constantly- like every time you dip the brush. Otherwise it'll separate out and you'll get a blotchy finish anyway. No need to go 600x between coats. 320x is plenty fine and provides more "tooth" for the successive coat.

Probably a better idea is to use Minwax wood conditioner on the bare wood first. It'll help even out the finish on that birchwood stock no matter what finish you use. The best thing though is not to mess with it if you haven't started it yet. Birch is the crappiest stuff to work with and almost guaranteed to frustrate the amateur.


"You can lead a man to logic, but you cannot make him think." Joe Harz
"Always certain, often right." Keith McCafferty