Yeah, I'm sure that's why I rank on WoLs too. I have 2pc, 536 uvls and 17.2k haste and the dps is still garbage.
It's been said over and over again that if your locks/mages are loosing to your shadow priest on anything but elegon or horridon, its time to recruit new ones. Its been like this since we were in 463 blues and the same when we're at 550 epics.
If it's too late to re-roll lock, go find those KJC nerf QQ threads in the warlock sections and bath in their tears. (although I guess is not applicable anymore either)
Spriest have been QQ-ing since release for a way to get orbs before a pull but not even a tweet mentioning it while a couple weeks of lock QQ before the patch is even in ptr = KJC nerf reverted.
Oh and don't hold your breath for anything being done about it either. If you paid attention to priest changes on the mmo-champ homepage it usually looks like this
"Disc change
Disc change
Disc change
Disc change
Disc change
Disc change
Disc change
Disc change
Disc change
Disc change
Holy change
Holy change
Holy change
Holy change
Shadow pvp nerf that will bleed into pve"