If you wait a month and a half or so I might get around to updating this simulator to account for meteor. Otherwise, without meteor, SA does make up like 30-50% of your total effective dps. The higher your CC or WW CC the higher the%, though that mainly applies to single target. Multiple targets favor EB and DS more.
Like I said before, for meteor builds SA isn't nearly as good since 1 meteor cast only results in about 0.25 of a proc if you have 50% crit, which is about 1/20th that of 1 WW cast. In other words SA procs SA about 20 times better. Multiple targets are a little more complicated since meteor has about twice the aoe radius as WW, which is why meteor is considered competitive with WW against large groups of mobs.
http://d3cmww.com/
I've tested against mp10 ghom and calculating my true damage manually it does agree with this calc.
But, you are using a Meteor setup so you aren't attacking and procing as quickly as a normal sns build so yeah SA wont be as beneficial to you.
Like I said before, for meteor builds SA isn't nearly as good since 1 meteor cast only results in about 0.25 of a proc if you have 50% crit, which is about 1/20th that of 1 WW cast. In other words SA procs SA about 20 times better. Multiple targets are a little more complicated since meteor has about twice the aoe radius as WW, which is why meteor is considered competitive with WW against large groups of mobs.
Crusader DPS and EHP Spreadsheet, meant for Crusaders
My Wizard