I don't know about anyone else here but I am using dual Rimefang's Claws and never have any issues with threat. I just tested using 1 nighttime in my main hand and found no difference in threat at all. Another weird thing I have found is I don't get parried at all in 5 mans and I am not even soft caped. I have only 24 expertise rating. This is my armory if anyone cares
http://www.wowarmory.com/character-s...ing&n=Tetsigah. Oh I think I might know why I don't get parried it might be because of Rune strike being macored to all my regular moves. Since it cant be blocked dodge or parried so many of my auto attack become rune strike it might push them off the table. I am really curious if any other frost Dual wield DKs have encountered this phenomenon or if its just me.