Yup, TF is no longer any good to threat, the multiple nerfs it has had crippled it.
It is still decent as a mitigation weapon as mentioned.
I used mine for P2 of the Prince in Karazhan when we were learning it and had no dps warrior present.
I used it for when I was tanking mobs that were not the first to die, and was noone around to thunderclap - later channelers at Magtheridon, hunter (and pet) at Karathress are examples. I'd use SoV with it.
I also tend to use it when soloing, for no real reason other than it looks alot better than my pink lolipop.
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Not really sure why you would want to achieve passive uncrushability in pre-scc/tk gear as although you'd be taking consistant damage I'd think you'd be taking way too much with the avoidance you'd lose by over-stacking block rating in place of reasonable amounts of dodge, and likely low armor-value items.
Are badge items allowed in your setup? thinking about 2.4 boots, that would help for block rating, but would not be normally considered over the 2.3 boots.
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