UPOL spray technique?

Just ordered some UPOL #1 in the spray can to try on some epoxies. was wondering if its best to spray from nose to tail inline with the stringer or side to side perpendicular to the stringer? I think i read sand hot coat to 320 before spray does that sound right?? 

320 sounds good to me.  I would recomend from nose to tail when you spray.  I have used Upol #1 and it is a good product in my opinion.  I always did multiple coats of thr stuff on epoxy boards.  It takes a little figuring out the proper technique though so that you get a nice seamless finish.  When I first used it the finish was a little streaky.  But its not to hard to get right after a few tries

I hope your not trying to avoid smells, that stuff reeks to high heaven! < ---- this coming from someone who only uses poly to glass.