Sorry to hear that saddoc. Not sure how I'd change your studying. I personally did some of PEER VI, all of PEER VII, some of PEER VIII (which I am totally not impressed by, don't buy it) and all of 1000emergencymedicinequestions.com . However, I didn't feel this year's ABEM exam was like any of it. I felt a lot of questions were very ambiguous where you could narrow down to 2 and then couldn't choose between the two because they were equally good or equally bad (usually equally bad). There were some straightforward gimme's, but I felt there were far more ambiguous ones. I don't really know how you would change your studying to prepare for that.
I also took a course (on DVD, I didn't actually attend the actual course). I don't really know if that helped either because I found the information was just very basic - I guess good refresher and good for buzzwords, but wouldn't help the ambiguity of the exam either.
Good luck.