Tests 70-89 are most similar to what I saw on the November and October LSAT. There's usually a conditional sequencing somewhere in there, and the final game is usually a difficult 10-12 minute game.

Tests 50-69 cover the fundamentals but simpler and straightforward.

I don't know where everyone is getting their numbers from, but you get your percentile with your official score and my percentile was basically identical to what it would've been in previous years.

I don't think it has to do with difficulty. You're in that range. You could've just as easily misread a single question on your previous tests and scored a 169.

Also, 7sage rates the test sections by difficulty. Go to Analytics and hover your mouse over your section score in the line graph.

I would wait. It is too late in the cycle at that point and you risk underperforming again. If I were in your position, I would take the LSAT in April at the earliest and reevaluate my study methods and test taking methods (for example, I used my PT test data to figure out I average -5 in RC when I highlight and a -3 when I do not highlight). PTs are also poor indicator if you tend to underperform on test day like I do. I was not able to score a 166 until my PT average was 169 and regularly hitting 170+ (my highest fresh PT exam score was 176ish).

Also, unless you're studying full-time, I think a 7-8 point jump in a month after your initial plateau is unrealistic.