My program does intense inservice review. I've now completed it 4 times and feel very well prepared for the real deal. At the same time, I'm way too neurotic to not do some studying between now and March 17.
As a side note, we also do weekly oral exam practice cases (except when we're doing inservice review). 2 residents each week do a practice case in front of everyone. Between doing and seeing cases, we get tons of experience with the quite unnatural setup of the oral exam, along with a wide variation of types of cases and pitfalls. I'm quite grateful for the intensity of the academics at my program (on top of all of the above, we go through the vast majority of Tintinalli every year).