So the final tally is in. Let me be very clear.
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Although I still have not yet achieved the same DPS numbers I was able to achieve against Erebun,
I WAS RIGHT ABOUT A NERF.
Edit 04 Jul 2012: Nevermind. Just took a look at the Champ Forums. They're parsing nearly 2k, unbuffed, and COMPLAINING about it. I'm still not breaking 1200.
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I DO believe that because of the dramatic changes to the way RK's do fire damage, it's HARDER to reach the same DPS numbers as before. I was able to reach 900 DPS against Erebun. The thing is, I think it's a little TOO hard to reach the same DPS numbers as before.
Before the update, it was easy to reach peak DPS and stay there for a long time. Now, it takes FOREVER to reach peak DPS. I'll have a new post on my rotation later.
Edit 04 Jul 2012: Just read some of the Champ forums. 900 DPS is paltry, and it hasn't improved much for RK's since. I hereby reinstate my claim of NERRRRRRRRFFFFF!!!