Yeah, I’ve had the same experience as jandjdad. I got a 220 on my PSAT junior year, and after that received TONS of mail from colleges I didn’t even bother applying to because I knew my grades weren’t up to par. I received very few envelopes from schools I would consider “safeties”. UChicago and Yale were particularly persistent, but I didn’t delude myself into thinking that the mail meant I had a good shot.