Drill LG, starting the with the LG parts of core curriculum. It will probably pay off more than PTs. LSAC gives you points for getting questions right -- they don't care how many PTs we've taken! :)
If you pay attention to the 7sage core curriculum, you could do significantly better than 8-10 right per section. At this point, you'd make easy improvement by learning the fundamentals
I've had some embarrassing slips myself. Just gotta pay attention. I find it also helps to ask what LSAC is testing for in each question. Im concerned if my answer choice doesn't fit a classic mold.