You're lucky i was passing. Ok, if u take the sample qus they send you and solve them in a test atmosphere with same time limitations, etc then in my opinion, the results you get will pretty much reflect what your performance on the USMLE will be as far as KNOWLEDGE, STRATEGY, ETC is concerned. BUT....you have to consider the fatigue factor on the real 8 hr exam. I didn't know WHAT i was marking in the last block. I had a splitting headache (DESPITE a prophylactic NSAID) and my eyes kept tearing up, irritating the hell out of me. I would suggest taking several long 7-8 hr tests to condition yourself for the exam.