I just got a license of ScrapeBox and used it to scrape some expired tumblrs. The results were amazing as I got lots of expired tumblrs with 28+ PA. When checking them for PR, the major of them were PR 0 and TF ranges from 0 - 2. So my question is "Are these tumblrs (only 28+ PA) still worth to use as Tier 1?". Should I filter them out and only keep ones with TF 5+ or PR 1/2+.