Critical Reasoning Bible Question

Hi. I have about 2 and a half weeks left until my GMAT test date. I own the Critical Reasoning Bible, but I haven't used it yet / haven't really even studied for the verbal section besides using the manhattan sentence correction book. I've taken 3 practice tests (GMAT Prep 1 and 2 Manhattan CATs)and on the verbal section, I've scored a 46, 44, and 45 on them, respectively. On each of them, I am still getting about 3 or so 700-800 level CR questions wrong (in addition to a few SC and RC questions). So, my question is whether it is worth my time to go through the CR Bible? Would it help me significantly on these 700-800 level difficult questions, or does it pretty much just focus on the basics which I probably already have down? Overall, I'm going to be spending most of the rest of my study time on Quant and sentence correction because I feel like I can get the most return out of that study, but I also could find some time to go through the CR bible if it in fact would be helpful. Any advice would be greatly appreciated. Thanks!