Only went more in-depth with destruction sims for now, but maybe those will be of any use to you. My own char(http://eu.battle.net/wow/en/characte...d/Whi/advanced) with a bit optimized two target apl's - to be more specific I replaced:
Sac: mastery > crit > haste, Sup: haste > crit > mastery, Service: haste = crit > mastery. Images are clickable for more details.
Looking at the stat weights mastery beats crit and haste when cleaving, so sup/service could gain some(tad below 1k) by reforging sac style.
Edit: Hm, multiprofile stat weights came out a bit different than the ones i remember while doing those reforges, need to double-check.
Edit: Nvm, sac could gain 60 dps by dropping 368 mastery for haste, nothing spectacular.