Since Patch 5.1 introduced "free" entry to older raid instances and promised to make it easier to solo them I went back to Black Temple last night. At first I died at the very first boss very first boss because he stuns you with no break in sight, like you're in a permanent coma, as always happened before and thought nothing had changed since I last tried it some time back in Cata. But unexpectedly on my second attempt I got a breezer between stuns for about 10 seconds and it was enough for me to be able to finish the sucker. There's another challenging boss another challenging boss, but that one is not nearly as bad. So all in all I have successfully cleared BT all by myself, like a big boy.