...reforge almost everything to haste over mastery for assassination spec ? Am I missing something or.... ?
Because Haste will more often than not be a single target damage increase if you're allowed to sit on the boss non-stop and there are no adds. Mastery is better with adds, downtime and has larger swings (potentially lower than Haste, but also potentially higher) that Haste doesn't usually suffer from.
However, there's an entire thread on Assassination that's gone over this a dozen times.
Please check to see if people have already asked and answered your question.
http://www.mmo-champion.com/threads/...ecommendations is currently on the front page of this forum. There's no hunting to find it, and you'll find the discussion on shadowcraft's recommendations and what variable builds assassination rogues are really running there.
Misinformation sidenote: haste does not affect the vast majority of trinkets at this time. Cloak + meta are the big RPPM contributors.
Closing this to prevent further confusion and clutter.
Rogue Forum Moderator (formerly Mugajak)
Former Electric Sheep Recruitment Officer (They're Great!) - Kaeldraens