This way all your four meteors are on constant cooldown, Works like a charm.
I'd use this build if I had the set, except that I'd swap the Storm Armor with Energy Armor. Other ways of procing all 4 meteors have various drawbacks:
Sparkflint only hits 1 target, Cannoneer is a significant boost to AOE DPS by itself
The only problem of the above build is that Ignite is used instead of Force Weapon, but if you have 1 spare passive slot, Conflagration will compensate a part of the DPS lost.
http://us.battle.net/d3/en/calculator/wizard#UcQjSO!dWe!ccZcYZ