Major Glyphs PvE frost mage.
25% haste with unglyphed Icy Veins active
16.83% haste with unglyphed IV and Frost Armor
11.26% haste with unglyphed IV, Frost Armor, and the raid haste buff
(Note: You do want to use Frost Armor as Frost.)
So you might think you need to glyph IV at 11.26% unbuffed haste, but unglyphed IV actually still provides higher DPS even after you bump into the GCD floor with it active, especially if you're using Evocation. Glyphing IV becomes superior somewhere in the middle of T14N -- haven't pinpointed it yet. But the difference is small at that point, so you could switch whenever it feels most comfortable for you.
With glyphed IV, you're unlikely to hit the GCD floor unless Bloodlust is active.
33.52% haste with unglyphed Icy Veins, Frost Armor, and raid haste buff.
Find answers to questions about Mage mechanics in
Lhivera’s Compendium • http://lhiveras-library.com/compendium
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