1 week until the big day...

My test is this Monday. With the limited time I have left, would you guys suggest purchasing OAT Achiever to stimulate more test-like environment or should I continue studying from the OAT destroyer (2nd time over)/Chad's/Kaplan. I did take 2 of the Kaplan tests that came with the book and my scores are:

Kaplan1/Kaplan2

Bio: 310/370
Chem: 350/350
Ochem: 340/350
Physics: 290/300
Reading: 330/320
QR: 320/370
TS: 320/350
AA: 320/340

Please advise!