160K unbuffed refers to HM raid tanking. This assumes several things, one of them being you have a certian about of mastery ( from items, specifically raid gear or tier peaces) . I would strongly suggest jemming mastery and parry, not stam. Even assuming your tanking HM raids, you still jem chant reforge those 2 stats and just switch to a stam trinket. You really want to aim for you block to be over 50%, then blend in parry to pro hold the line. Currently, Id would assume healers have a bit of trouble keep you up as a result of large damage spikes.
Reev: So, do I macro /dance into Shield Slam now? Raysere: Yes, I hear it increases your DPS Gold balance gear quality attractiveness to the opposite gender considerably