Hi I took the exam right after I finished the last unit. I ran through all my previous practice tests and 15 minutes later I took the test and got 85. Not the 100 I'd wanted but passing enough and I'm working now. You've maintained a lot of the info from the on-line course. If you have gone through the course w/o much confusion you should be able to get a 70 on the exam or better. I took the course in 5 weeks and worked hard in a short amount of time so all the info stuck between my ears making study a waste of time. If you don't have the confidence, study, if you're confident take it and get out there working!!!