I'm almost certain I've done Titan EX with you, when your DRG was wearing a spring dress.

Anyways, you just need to learn how to adapt the rotation to T5s mechanics, really. Little things like, having dots ticking on twintania, whilst a conflag is up. Before the conflag, being ready to land disembowel straight on it, to go straight into burst mode (fast conflags).

Once you do that, you'll find your DPS won't be low enough to be compared to a PLD. But enjoy your venture on WHM.