Yep, that's what it means.
however, my personal opinion is that you have to consistently score at 165+ to get a 163 on the actual LSAT. i know a guy who consistently scored in the 170's on practice exams, even a few 180's. day of the test, got a 165. He actually did amazing on the first 4 sections, got tired on the 5th section and got 11 wrong just in that section.