Not long ago I submitted an article to PRE. One referee was in favor and two against (this not more than 3 months ago). Rather than pressing, I decided to submit it elsewhere. A single referee report was negative on the grounds that the article was unclear, though the details helped me revise the article. Is it all right to resubmit a substantially revised article and new supporting material to PRE under the original article ID number, or am I obligated to make a new submission? In the event of the former, should (must?) I mention the intervening submission?
It seems like your questions are answered here: http://pre.aps.org/info/polproce.html, in particular:
"Authors should state whether the paper they submit has been previously considered for publication in any of the APS journals (Physical Review Letters, other Physical Review journals, or Reviews of Modern Physics) and supply the code number assigned by that journal."