Instance troubles

[Malgor]

Here is my arcane spec if you want help. My mage has about 5100GS and does about 2900 DPS in instances while 5 boxing.

http://www.wowarmory.com/character-s...Malygos&cn=Tou


Here is my arcane cast sequence:
/stopmacro [channeling]
/castsequence reset=5 Arcane Blast, Arcane Blast, Arcane Blast, Arcane Blast, Arcane Missiles

I'm doing that from memory since the servers are down for 24 hours, so I hope that's right.