Has anyone ever tried 11/31/7 for Raid Maintanking?

I'm talking about http://db.vanillagaming.org/?talent#sxVzbZVhxIxzVoV0b
Never tried it myself, as am only 46, but seriously! LoH is basically our Shield Wall, and not only does this allow us to use our big Oh Shit button a third more often than Warriors, but it applies a dmg reducing buff that, although falling far short of Shield Wall, lasts a helluva lot longer.
Yeah, you'd give up 2% Parry to have it, but it is my understanding that no Tank even needs to be uncritable until AQ40. Could the 2% Parry be made up from gear by that time?
What do you guys think? Might it be worth a try, or is Imp LoH best left to the Healers?
Theloras and Killerduki, I'm looking squarely at you.
Never tried it myself, as am only 46, but seriously! LoH is basically our Shield Wall, and not only does this allow us to use our big Oh Shit button a third more often than Warriors, but it applies a dmg reducing buff that, although falling far short of Shield Wall, lasts a helluva lot longer.
Yeah, you'd give up 2% Parry to have it, but it is my understanding that no Tank even needs to be uncritable until AQ40. Could the 2% Parry be made up from gear by that time?
What do you guys think? Might it be worth a try, or is Imp LoH best left to the Healers?
Theloras and Killerduki, I'm looking squarely at you.