Here's what I did differently this time (I hope it works on my retest - I HAVE been scoring much more consistently in the range I hope to achieve in):
-Every other night I go through the review for each question type chapter in the LR bible
-On those same nights I add a review of a game type chapter in the LG bible
-I practice 3-5 game types of the chapter reviewed in the LG bible
-I take a timed LR section from an unused preptest
-On alternate nights I take a timed preptest
I've only started this routine last weekend, but before that I was reviewing the chapters from the bibles independently and doing question types from the chapter(s) studied. I find that the constant review of strategy entrenches the concepts in my head. When I come across any LR question I either know immediately what to look for, or I know how to go about finding the solution (or at least checking to see if what I've chosen is right). I also set certain strategies for LR sections. First 10 in 10 minutes, next 15-16 in the next 20 minutes. 5 minutes to go back to those difficult problems. My pacing has gotten to a disturbing point. Last night I finished each LR section of PT 46 with 5 minutes to spare - I finished the LG section with 9 minutes to spare!
Since you haven't scored within your target range for a couple tests you're probably psyched out. Before taking another test, don't just jump in. Sit for a minute and prep yourself. Think 'I'm going to destroy this test', 'I'm going to stay ahead of the questions'. By starting out fast, you give yourself time toward the end to work over some more difficult ones. If you spend too much time early on, its easy to feel rushed and start to lose focus. Trust me, it is what happened to me in the final RC section on the June 2007 text. I spent too long on one passage and I paid dearly for it on the last passage.