TPR at least to me doesn't seem representative of the real thing. I think I can accept that I have content gaps which tends to be TPR's focus. I similarly scored 501 on TPR1 but scored 83% on the OG (90% BB/80% CP/80% PS/85% CARS). I think once you start doing AAMC stuff you'll realize it's more about passage interpretation. At least that's what I got the gist of from just the OG. Don't stress it too much, just start working towards official AAMC stuff so you understand the difference.
As for me, I am not touching a single TPR exam again until I take my real MCAT. Just not indicative of what it'll feel like. I felt like the AAMC OG passages were less about content and more about experiment interpretation. It slightly hinted at content knowledge but very discretely, it almost never was a FSQ in a passage. TPR exams are like half FSQs. Maybe look at more TBR or EK stuff. I think they are on par for AAMC.
