Well, he's right about most of the stuff. Polymorph glyph is great for 5 mans with idiot frost DKs who can't control their AoE, but not much use in a raid setting.
I think dropping both points in nether vortex would be a mistake due to Torment of the Weak - you can't assume a slow in a ten man setting, and wasting a GCD to apply Slow would be, well, a waste when you could be ABar or Orbing or something.
I would say a point from NV and Burning Soul, or substitute a BS point for Prismatic Cloak 2/3 if you're not raiding with a progression group.
Ideally you won't need Invis in a fight, so having it come up quicker shouldn't be an issue. When I was maging, I had a macro for the start of fights that would pop all CDs (MI included) and start a stopwatch that was supposed to ding at about 26 seconds, so I'd know to stop burning mana and get ready for Invis, usually getting it off right as Mirror Image dropped and the boss started to face me.
Arcane Power glyph is stupid awesome for so many reasons, especially if you time it right with incoming dmg and other cooldowns. But really, aside from that glyph for polymorph, your glyphs aren't really 'wrong'. Glyph of invis would be highly situationally useful, and what with blink + run speed talent for it, doubt it would be handy more than a couple times per month, really.
Oh, and 2 of your lowest pieces of gear should have already been replaced by 365 gear from the vendors already.. trinket and off-hand. Keep doing those dailies!
Last edited by Low Key; 09-09-2011 at 12:50 AM.