Considering Shockadin with 3x Shamans?

Well, I had 75k honor and I bought a S2 Gavel for my Prot Pally Tanking weapon.

Then I got to thinking how I've been playing BG with the 3 Shamans (2 Elemental, 1 Resto)

All my prot paladin do is Avenging Shield, occasional SoR/JoR if the enemy chooses to get into melee. Mostly it's Holy Shield and Consecration and Hammer of Wrath.
And ofcourse, Hammer of Justice to stop runners; and BOP.

I had collected Ret gear (Scaled) since season 1, but now I'm thinking if I should work towards Shockadin gear (Lamellar) with S2 honor, and S3/S4 arena pieces.
It's a viable "burst" spec and I wonder if anyone there have played a Shockadin spec; especially with multi-boxing.

Also, my Resto shaman has around 1600 Healing already, so I started getting Elemental Gear starting with the S4 spell haste neck.

Hmmm, 1 Shockadin + 3 Elemental. Imp Sanctitiy Aura = +2% group damage. I would miss Blessing of Kings though. :(