Dirty Fighting has no burst? But I'm the one that doesn't know what I'm talking about. Try a sab charge/aim shot/wounding shots. DF can do as much burst if not more then SS.
I don't care you're valor 80 blah blah blah. I'm valor 90 full WH Aug (including Elite WH), but you don't see me throwing it around in peoples faces, but I really don't care. You are only gimping yourself if you play SS in PvP. You said it yourself you play MM exclusively, so you are biased. Have fun with your garbage spec.