Well my mage is exclusivly pvp, so I played it Frost (for arena) and then.. this dual spec thing happens exactly when I got to farm honor again!
So I did this spec as my alternativ-spec for bgs (because I find Frost pretty boring in bg)
And it's AWESOME!
Scorch+Fire blast(+stun!) on frozen target.. -> Hot Streak
FFB+Fireblast on Dragon breath'd target..
It's a whole new world of fun opening to me so I just wanted to share!
Ok survability is not that good.. but it's not as bad as before (especially since the 10% disarm thing) and when you start burning things alive.. I'm not sure you can live without it again
Edit : Yeah I may get the LB glyph when it's no longer 200+po