The best way to do this is to use the site: operator, then arrange by PR.
However, do not do this once you get your unfiltered list.
After you've harvested all links, you will have a lot of stuff to sort out. First, remove duplicate domains. Just do it for now, it's easier. Then test for autoapprove by either posting or link checking, or as I prefer to do run the whole list through the blog analyzer to get blogs with no spam protection. These are likely your targets and a vast number of these will be autoapprove anyway. The reason I prefer this is because the link checker takes a long time and gets a lot less blogs, but to each his own.
Once you've got your unprotected and/or autoapprove list, remove duplicate domains again just to make sure (though if you'd done it before you shouldn't have any). Now, trim to root. Export urls as txt. Now, go to the search box and type site: , and select custom footprint. In the keyword box press import, and select your txt of trimmed urls you have just exported. Harvest these. Once done, remove duplicate URLs, arrange by PR and there you have it.
