Holy sh*t, the Patent Bar is indeed vicious. I took it the day before 1L orientation started and missed passing by 3 points. I'm not surprised, as most of the time I intended to use preparing for it this summer got sucked up with moving, childcare, etc etc etc. My tentative plan is to retake it over winter break - I wasn't *that* far away from passing, and I seriously felt if I'd taken it the next day I probably would have passed it. Two more weeks of heavy-duty preparing out to have me in good shape to improve by a few points.
The only problem is if the changes with the new revision are extensive, that could trip me up. Sigh.