I'll be quoting myself, because I'm lazy, but I'd like to remind everyone about this neat tidbit about parsing:

Quote Originally Posted by Waliel View Post
There's more to parsing than just DPS. We did our first real venture into T13 this thursday and kept wondering why is our WHM randomly dying on Megaflare stacks. Checking out our trusty parser, it turned out she was hit twice by Megaflare for 5k+. We adjusted by telling everyone to spread out a little more and never had the issue again.