Any tips to improve reading comp??

LR I'm averaging 40/50, LG 20/25, but my Reading Comp is around 12/25 which is really lowering my overall score.

So I took a course with Blueprint and I improved my score by 29 points between the practice tests. I just took the September LSAT and will most probably be taking the November one as well. On my last practice test I got 15/23 on the Logic Games section. What is the best way to improve this part of my score? I've seen a few books by Powerscore on Amazon. Any recommendations?