I think a general consensus among people on SDN is that the NS full-lengths are some of the most representative exams out there right now. With that being said, you should treat the exams as a way for you to monitor your progress and get a feel for the timing of the actual MCAT. Because NS cannot give you a completely accurate score, you should treat the scores you get on their exams as markers. Pay attention to your progression (i.e, if you start with a 490 on a NS exam, instead of focusing on the 490, focus on improving that score). The only real way to assess how you will do on your actual exam will be through the AAMC FL exams.
Kevin W, MCAT Tutor
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