I've been stuck in the low 160s for months--since August actually. I kept drilling and scored a 163 on my November exam. I took a month off before getting back on the LSAT train, and I scored this after not touching the LSAT for a month. Praise God!
For those who remain in a plateau: Keep going. It will eventually click.

@PhoebeHopp I find myself in the same situation. I received a 168 on a PT back in December and have averaged 170 on my recent PTs, but then in April a 163, and then in June a 164. I did not feel great about my April test, but I felt fantastic after my June exam. I completed some light drilling the week of the exam. I plan on hoping back on the study train next weekend and take a PT and work with a tutor--I think I need to focus on RC more. Any advice would be appreciated. Your comment is encouraging.