well i tried DW frost (we are talking about 3.2).
At first when i tried i had some decent tanking gear so i had to gem defense (less stamina),
though i had good threat (which i have problems with it in 2h)
so i told myself ill go back to 2h for health, until i will reach a decent amount of
defense from gear and than ill go dw... so after i wasted almost all my dkp for
some imba gear i got this thing:
The World of Warcraft Armory
Frost DW, over 41k hp without buffs
no need of defense gems (551 defense)
i would recommend this spec + going dw for people who are accessible for
the high end (current patch - 3.2) gear aka ToGC25, ToGC10.
Rotation
First macro almost all keys with runic strike.
rotation for single(Off tank \ Main tank):
IT > PS > OB > BS > BS > Runic Dump |> IT > PS > OB > OB > Runic Dump, Repeat
if Rime proc, you click HB right away.
if Killing machine proc try to frost strike right away (don't save it for HB - If Rime and KM proc together, first FS than HB).
rotation for AoE:
DnD > IT > PS > Pest > Runic Dump |> IT > PS > Pest > BS > HW > Runic Dump, Repeat
if Rime proc HB right away, if Rime + KM proc HB right away.
if only KM proc wait for HB to refresh cd and use it.
Warning!: if your using DW frost (this spec) make sure you have expertise over 28!