Originally Posted by Shalas

At most, with one enh shaman there are two SS charges per 10 seconds to use. The elemental shaman casts a spell at least once every 2 seconds (between haste gear and CL, it should be significantly more in practice). Glancing at a few WWS logs, Wind Serpents cast LB about once every 2.5 seconds. Assuming Osse's number of 80 dps is accurate and spells are evenly distributed, the net effect is this:

# Wind Serpents	WS DPS gain	Charges used by WS per 10 seconds	Pre-SS LBolt size for equal DPS gain
1	80	.8	5000
2	160	1.375	5818
3	240	1.58	7595
4	320	1.69	9467

Assuming I made no math errors and the assumptions are accurate, using wind serpents is a net DPS gain for the raid even with an elemental shaman unless you have an ele shaman that can do 2.5k DPS without SS.