Forgive me if this has already been addressed. I have rerolled as a mage for Cataclysm and need a little more practice on the higher damage fire spec (as well as a little more gear) so I have been playing frost for the time being. Using Molten Armor with lower levels of gear (alot of 333s, resil gear or worse) mana is pretty tight even with gem on CD and Evocation.
My build is off Ej so it looks like this:
http://wowtal.com/#k=RBkn_LFO.a67.mage.
So my question is this: is there any reason to take Netherwind presence over Arcane Concentration? My frostbolt seems to hover at 1.9 seconds raidbuffed with or without that talent so is there any sort of math that says bringing it down to 1.8 is a big increase? If not, there is no way I will spec into Netherwind Presence especially using Molten Armor. Also if I take this build and attempt to put all 3 points into Enduring Winter (again, to help with mana) what talent should I snub? Reactive Barrier?
Really appreciate any input. Thanks in advance.
Cheers!