3 tank TT is nothing new. The only thing that REALLY destroys you is having 2 burst dmg dps in your lane and constant early harass... The problem with 3 tank TT is that you need to build heavy dmg early via runes /early items before you build tanky, so that you can deal enough dmg to get a kill.... vs anyone with a sustained heal/burst you're not gonna really be successful. Trynd-> you better hope to god he's got crappy luck with crits, if he decides to up and kill you and is successful, 2 kills is all it takes for you to lose the game, at this point he's got his zeal and boots 2 and you're never ever gonna kill him. catch him, or stop his farm... game over.
lol with all that being said, every time i've tried 3 tank TT i've not lost lol... Singed alistar malphite, amumu, singed leona works well too.