fully functional Titan ?
No, not for me at least. I had bad luck in this game-of-dice. (?)

Most of the cubes show weird behavior.
Some Dies kick in from time to time, with the right voltage for them but then causes errors and bfgminer crashes.
Additionally there are frequent restarts (5min interval) due to some dies are off.
And the restarts decrease your avg hashrate even further, because bfgminer needs more than 1min to get up to speed.