TEAS practice tests

Hey everyone :) So I took practice tests A & B and scored high 50s on both of them. I just bought the 2026-2027 ATI TEAS study guide, and took the practice test that came with it. I got an 80 which is a huge jump lol. I was just wondering which would be more reliable and closer the actual exam. Would it be the one from the study guide since it is newer?