Prosdog,
It sounds like you know the material and now just need to work on your test taking skills. Three things that made the difference for me were time management, familiarity with the electronic MPEP and being comfortable taking computerized exams.
Time Management - I quickly and carefully read every question and chose an answer spending approximately 2-2.5 minutes per question. Mark the questions you are unsure about and note on the scrap paper what rule you think would apply and what chapter to look in. The remaining time was first used to verify/confirm answers, second used to look up questions that I had a good idea of where in the MPEP the answer would be and Third to work on the random out of the blue questions that I had no idea where to begin looking. Since every question is worth one point, no sense wasting time on difficult questions. Also, by writing down which chapter/rule applies to each question, you can look up answers to questions in groups.
Familiarity With The Electronic MPEP - This probably is the most important thing to practice. I went through several old tests and looked up every question in an electronic version of the MPEP. Make sure you use Adobe version 5.0 since that has the same features that will be available on the test. I downloaded each chapter individually from the USPTO website and saved them in a folder on the harddrive. The files had the same labels that the exam had on the drop down menu, after clicking on the MPEP button, e.g. "1200 appeal", "2100 patentability", etc. Knowing the main topics covered in each chapter helped immensely.
Being Comfortable Taking Computerized Exams - Nothing beats taking computerized practice exams, except practicing them for free. I bought the Patent Education Series exam simulator software for $100 and it was nothing like the actual test. The only thing it was good for was breaking down the questions from six different tests into groups, e.g. questions on 102, questions on reissue, questions on 103, etc. About midway through my studying I stumbled accross a free exam simulator that was almost identical to the actual exam.
http://www.catprep.com/exams/patent-bar/index.htmlThe only thing they charge you for is grading and storing you test. You do need to have JAVA enabled on your computer. If you do not have a personal computer, go to your local or University library and take the practice exam there. Since you can download the exam answers from the USPTO website, I used the software, but also recorded my answers on a piece a paper and checked them myself. Additionally, I used the downloaded MPEP copy (opened in another window) instead of the link they provided.
Good luck, you will pass.