I'm partial to Michigan, but that probably has more to do with the atmosphere of the school than anything else (secluded, quiet, cold, cozy, beautiful), which you said may not be a better fit for you than Northwestern.
I tried the bible and did not see significant improvements. I would say try 7 sage, and focus on practice and reviewing over and over. Marking so much only wasted my time. Actually, all the powerscore bibles did haha.