I disagree, piii. Admissions committees are most likely not going to use a straight overall percentile comparison. Doing so denies the obvious similarities between the first three sections. Medical schools do not yet know quite how to use the new section; therefore, the base 3 sections, which are indeed comparable to the old exam, are most important. I honestly would use your score as a 36. Unless you have inside knowledge as to how an admissions committees are going to compare your score to older scores, I would not use the simplified overall percentile comparison. Committees have access to individual section percentiles, and they can easily compare the first three sections across. If all MCAT scores in the pool were "new" MCAT scores, then the overall percentile ranking comparison would make sense. The reality is that for the next few cycles, that will not be the case. Even shear difficulty alone, I would think admissions committees would weight a 508 as better than a 30 from an old test. A 10,10,10,10 > 10,10,10. My score is equivalent to 11,10,14,10, and I am indeed using it as a 35 + 10. Looking at it another way, the percentile rankings for each section are still relevant. 87th percentile physical sciences doesn't get diminished because there is a 4th section to the exam. A 99th percentile bio/biochem section is still 99th percentile.