Are any of your sites a TBPR 6 or greater? I know, I know, TBPR is useless, blah, blah, blah, but what other PR tool can we go off of? I'd be surprised to see a TBPR 6 site going supplemental at all unless it has duplicate content in Google's eyes. My TBPR sites that are 5 or greater seem to be gaining "REGULAR INDEX" status whereas my lower PR sites in the 3-4 range are going supplemental FAST, unique content or not.
We have a range of visible PR from 6 to 1 , but the reality is that there's no way of checking without the site:tool working.
I don't know what happened to those promises at Google for it to be fixed, and i don't know how any webmaster can accurately comment on the overall health of their site's pages without it.