My post was a bit misleading. I ment BoF for pvp purpose. I don't think that it has much value in PvE.

When it comes to shami boxing I assume that x3 LB/CL + x3 shock will be enough to oneshot players on max lvl. So maybe it makes sense to have 3 ele and 2 resto for the mana tide totems. The resto shamis could still use instant CL and shock with the team, just hardcasting lightning spells would probably be not worth it with the restos.