Fusion of Flesh, Shock Burst, Mass Betrayal, Reflective Presence (I could go on) > Heatwave. And since 51 Pyro has no cleanse, pretty much any "dualing" class getting a-hold of you in a straight up 1v1 is game over. And Pyrodom, Pyrochloro, Pyrolock, or even Chlorodom will still beat a 51 pyro easily.
For my FoTM fancies, pyrochloro is doing the trick. I can bloom, fluorish, ruin, stream of reclamation, vile spores (raid heal), spot cleanse like a champ with spark, and then switch to heatwave + burn when needed. My AoE's from pyro proc heals from my source core.
Is the pyrolock worth it over the chlorolock? I've been debating the benefits and the only one I can see is the 1 sec gcd on cleansing, but at the loss of some other survivability and Opportunity. Freaking wish I had more role slots dammit, messing around with combos constantly right now.
Who cares, good players will perform well, and life goes on.
- Competitive PvP DPS. You should fear seeing a Rogue the same way you see a Warrior. Of equal Prestige Rank, the two should be capable of providing a similar amount of PvP threat.