Dude, i'm getting my butt kicked by MKSAP 2. I'm averaging around 60-65% and I got the IM Shelf in 10 days. Please tell me this is way harder than the real deal?
Don't freak out about your score on the MKSAP. Use is as a study guide. If you know that stuff and have been keeping up on your rotation you should be golden. I thought that MKSAP II was by far the most useful tool on all of my rotations.
i thought the actual shelf was intermediate between MKSAP and Pre-Test, harder than Pre-Test but easier than MKSAP. I ended up with a raw score in the 80's. Just keep plugging away at it, try to repeat questions if you get a chance, and read the answer explanations!