I've been playing BM for a pretty long time and I have never really trusted EJ's forums for good information. My problem is now that I have 4p haste is less valuable right? Well I reforged out of most of my haste and kept just enough to make the rotation fit. (i.e. my cobra shot cast times don't clip my KC cool down). Mastery also seems like kind of an 'iffy' stat because it only effects pet damage and does not scale well at all, while both crit and haste effect you and your pet.
Here are some logs of the fights we did, If you could help me min/max my DPS it would be a big help, Thank you in advance
http://www.worldoflogs.com/reports/t9yc5xa21mmkdgwk/
http://www.worldoflogs.com/reports/sv7wn049p7usx33h/
Armory
http://us.battle.net/wow/en/character/mannoroth/loliqt/advanced