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.
I used 7Sage in tandem with PowerScore Bibles. I actually read through all of the Bibles before starting 7Sage and I felt like it gave me a good foundational understanding of some concepts in logic.
If you still feel like a beginner after reading the bibles and the trainer you might think about adjusting how you read and study. For some those two books alone can be sufficient studying for the test.