I've been mulling over this idea today and wanted to get some input from the community on the soundness of it. From what I understand we took on the slow MH/ fast OH idea from the 3. patches due to being able to take the poison talents from the assassination tree: deadly procs MH poison etc. As I understand we also kept a slow weapon in our MH due to it providing more damage through Sinister Strike.
Since the new patch, we no longer have access to those poison talents. Therefor is it feasable for combat rogues to switch the slow weapon to the OH, fast to MH, put deadly poison on MH, wound on OH, and the reforge for mastery? I understand we would lose a bit of dps from having a fast weapon using Sinister Strike, but exactly how much would we lose? Would we benefit more from mastery than having a slow hitting Sinister Strike weapon?
I tried this for fun to see. I reforged EVERYTHING to mastery (iirc got up to 20ish) after hit/expr cap, and fast MH/slow oh, and it was a massive, massive DPS loss. Not remotely viable. Same with slow/slow, tried that also. The proc rate is just garbage even at high mastery, and the loss of SS damage/combat potency procs is not worth it.
I could try again to see if anything has changed, but I doubt it. Even at a 100% proc rate I'm not sure it'd be a DPS gain, due to loss of combat potency and SS damage.
Edit: This was on PTR, when I know mastery was not procing combat potency or poison, but I don't think they've made it a guaranteed proc yet.