Hello All! I am trying to study only from retail prep books and wonder how I can come up with enough practice tests. I noticed many of you have taken at least 16-20 full-length practice tests prior to exam, are they all from prep classes? I only have: from Kaplan prep book, 1 test; Peterson's, 5 tests; Barron's 4 tests; Flowers and Silver, 2 tests, and AAMC, 5 tests. But I was told that Barron's is crap. And so are REA and ACRO. Therefore, the total no. of full-length tests I can do is 13 (not counting Barron's). Do you know if the quality/difficulty level of tests on those retail prep books is anywhere close to those offered at prep centers? Any info will be of great help. Thank you.