Passed my certification test yesterday and received Above Target in all areas. I've been studying off and on for many months but I developed a serious weekly plan in April and stuck to it. I think having a 6-8 week concentrated study plan was key. I started with PM PrepCast lessons and followed along in the PMBOK Guide and then used the exam simulator for 6 of the 8 tests. I reviewed my tests in detail to understand the "why" behind the answer. I also used exam formulas study sheet. The night before my exam I was still going through the exam prep and the PMBOK guide to test my knowledge. I never memorized the ITTOs but I understood the "why" behind the ITTOs for every process group and made sure I understood the repeating patterns and the unique inputs outputs to various processes. I am very pleased with the PM PrepCast and the exam prep. On exam day I had no problem finishing the test in about 3 hours and reviewed for the last hour. The Exam Prep and actual test were very similar in format and question style.