For pvp I've been using Medallion and Battlemaster trinket or on use spell power with resilience. With double 2 piece set resilience bonus, it means that I was sitting around 4k resilience. Seeing the upcoming changes for grounding totem and the 4p set bonus (-3 seconds on grounding totem cd), I decided it was time for another respec.

Shifted all haste into mastery, putting me at 30% mastery and 3% haste, swapped my pvp helm for my engineering one so I have the 4p set bonus, which is irrelevant now. Also got the idea to swap out a trinket for a pve one. And man how amazing was this theralion's mirror made me into the machinegun I was in wrath, back to globalling people. Don't have it on every shaman yet, but I definitely going to start farming it every week from now on (drop is from V&T, a pretty easy boss in BoT).

Lining up the proc with elemental mastery is really crazy output. This might make it worth speccing into feedback again. Also tried swapping out my mediallion for my darkmoon card volcano, but I dont think I can play w/o trinketing out of a deep freeze/stun lock. Felt like sharing as I haven't read anyone mention it for ele pvp. (it doesn't fix our problems obviously, but makes life definitely a bit more fun again).