I use rawr for general item picking and optimization for most of my toons and it serves it's purpose before running other simulators, but I've had an issue when I use for it for spriest. Completely naked it will show that I've surpassed the hit cap, and that surplus only grows leading to incorrect gear/gem suggestions. Does anyone else have this problem with theirs?
I should start by saying that I use version 2.3.23. The only thing I can think of that would make that happen is if rawr believed that you were a healpriest. Under the stats tab make sure you have shadow priest selected, and make sure you've input your talents correctly.