Than 30 then it's definitely worth cramming a little with their struggle areas.
That was the exact trajectory I took. Got a 30 without studying, endured weeks of parents saying how disappointed they were with me so I took a practice test two weeks before the next attempt and got a 32 then ended up with a 33 on the real deal.
Didn't matter much as my 2.9 BYU GPA cost me a scholarship pretty quick but uh you get the gist