Let's go dude I got the same score in November let's get this 170+ in January!!! I can't believe you've taken every PT that's insane. If anyone deserves this 170+ it's you. My technique is to literally never take full PT's. I select the question type I get wrong the most (for example in LR for me that's weaken, flaw, NA) then make 6-10 question sets of the "medium," "harder," and "hardest" questions from the first 58 PT's. Then once I feel good about all the questions I usually get wrong I'll take a practice test from 59 and beyond of only that section (LR or LG). I basically don't study RC because it's the hardest to improve on and if I can just get -1 or -0 on LG and LR I can afford up to -8 on RC. Also I feel like LR teaches a lot of the close reading skills necessary to improve on RC. I don't like full practice tests because I get burned out easily. Good luck!