Alrighty I just played 4 EOTS with this 30/0/41 spec.. and.. HOLY CRAP it sucks.
Basically, contrary to what one may think, you can get bursted down so fast by meelee that you will barely have time to press your healing button before you're dead.
I think the reason for this is the "internal" cooldown on Earth Shield and Nature's Guardian, making your defenses somewhat useless against multiple meelee.


Problems:
* No astral shift - your team dies very fast during an AOE silence or AOE stun.
* Mana issues - you are using Earth Shield to survive which makes you go OOM really fast. Granted you may have mana tides, but that's another micro management duty for you.
* No way to get meelee off you with TS.. this proved to be a very very big problem. Round-robin TS is probably the best survival tool shaman have at the moment, especially since many of our deaths are from Retris, DKs, Warriors, Rogues.


I'm glad I didn't try this spec in 5v5. Would have been so roflstomped.



This spec MAY be good for solo shammies in 5v5 to play a more supportish role, preventing instagibs on teammates with earthshield while at the same time putting out some respectable burst with FS and LvB.
However I'm convinced this is not for multiboxers.