I was able to clear Titan and Ifrit Ex through sheer force of will, queueing on DF time and time again until I got a group commited to take the fight to the end. It took literally my entire sunday to do that, I started queueing at like 12 pm and got it down at 1 am.

But I cannot do that with SCoB, since they still have the limitation that you have to enter with a pre-formed party. Really a bummer.