SAT practice tests ranked by which ones actually predicts your real scores

I've taken close to 40 full-length practice tests across every major platform in the last four months and I want to spare people the trial and error because "which practice tests match the real SAT" comes up here every week. Context. October SAT was 1420 decided to push for scholarship money went deep on tests to figure out which sources are actually predictive. Bluebook official (6 tests). Gold standard prediction within 20 points of my October score. Only issue is you burn through them fast. Khan Academy. Their full-length SAT tests are pointing you to the 6 official ones on Bluebook because College Board and Khan partnered on the free resource, so if you've done Bluebook you've done Khan's tests. Their practice questions outside of the full-length tests are fine for concept review but the video content is honestly the strongest thing on Khan for SAT prep. Princeton Review. Harder than the real thing by a real margin especially R&W. Their inference questions felt more like literary analysis than SAT reasoning. Useful for reaching but will wreck your confidence if you're using it for prediction. smartschool. Used their 50 full-length tests once I'd burned through the official Bluebook ones. Prediction was within 30 points of Bluebook for me and their hard Module 2 questions felt appropriately challenging. Main value was volume once official tests ran out, if you burn through the 6 Bluebook tests early you need somewhere to keep training and this was mine. UWorld. Harderthan real SAT but not absurd good for stretching yourself. Scores ran about 40 points low. Kaplan. Skip. Format felt off enough that I don't trust the predictions. Working conclusion. Bluebook is your ground truth for prediction everything else is for volume. Nothing else is perfect and you shouldn't expect it to be.