21 on the second exam? paaLEEASE. I was definately a slacker, yes, but I did kick my ass to get into med school. I got a 10 on my first TPR diag, 18 on my second. From that point on, I was scared shizless, and I really studied, FOR REAL. No bullshiz "im going to study real hard this time" and end up bitching about how hard it is getting into med school for an hour and a half and really studying for only half an hour. Buckle down, get extra passages either from your testing company or from other resources (TPR has at least a good 10 extra, albeit older, diag tests that you can use as passage banks). Don't lie to yourself, and truely study. May try different study habits/locations/techniques. Oh, by the way, I got a pretty dang good real mcat score too. So don't worry to much if you're really gonna buckle down. Good luck.
sscooterguy