I agree with stansteel, the kaplan full lengths seemed too fact-based instead of critically-thinking based. I consistenly scored very well on the kaplan ones, but my score dropped a few points on the final two aamc tests. I did feel prepared for the aug03 test, so to all who are taking kaplan (or any test prep for that matter), take all the practice tests and section tests you can!
regarding kaplan tests 6-11, I was told by my kaplan center director that the scores might not be as reliable as 1-5, as kaplan adjusts the raw score conversions based on how everyone does on the particular test. Because 1-5 have been around longer, those scores are more reflective of what you'll actually get on the mcat. I think for this reason, plus the inception of Qbank, they got rid of tests 10-11.