With the healing totems down,

Can 4 elemental shammies dps and top up heal in instances with a prot spec warrior in the group?

pew pew heal pew pew or even have it go like this:

Do a cast sequence like this

Shammie 1 - Healing Wave Tank----Lightning Bolt-----------Lightning Bolt
Shammie 2 - Lightning Bolt-----------Healing Wave Tank----Lightning Bolt
Shammie 3 - Lightning Bolt-----------Lightning Bolt-----------Healing Wave Tank
Shammie 4 - Lightning Bolt-----------Lightning Bolt-----------Lightning Bolt


etc etc etc