My guess is the test focuses more on different question types. One you are just barely worse at. Take a look at the analytics and try and pinpoint the question type.
I am in the same boat. First PT was I think 145, then 148, then 149, then a dip of 143 which made me angry and then I bounced back and got 159. My LSAT is scheduled for October and I am just hoping for 150. I am a bit older and do not care to go to …