I got 147 on my diagnostics, then in 2 weeks I saw a +12 improvement. Starting 4th week, my score kept dropping until it reached 153 by week 6. I started to rectify the flaws in how i study and worked towards the areas where my score dropped. Gradually since then, I've had +1/+2 growth every week, until i took the last LSAT after studying for total 12 weeks, and scored 160.