you get your guild to let you DW tank by knowing why the math works and running with people who aren't idiots. anyone who heals a properly-geared dw tank sees that there is little difference in effective incoming damage. I raid in pugs regularly and no one has ever questioned my playstyle. Probably because they see that i'm loaded up with epics and they assume that i must know what i'm doing if i've made it this far.
My respects to you sir! *salute* it's rare to find an honest man, let alone a DW tank :P grats on batting off any of the nay sayers, I have to ask though; how?
how in the sense that, how does your guild let you dw tank? Most from what I see are wanna be elitists, and is your survival as DW ever thrown into question?