<p>For most subjects, CB only publishes one practise test, which is in the Official Subject Tests Guide; when is the best time to take this (if you also have all the Barron’s and Kaplan’s practise tests, etc.)?</p>
<p>I did my Math II OG test the day before the test. Now I think it honestly doesn’t make any difference. But if you’ve got lots of other practice tests, of course do the official ones after you’re finished with the fake ones.</p>