I've read a lot of discussion about that glyph. Fully raid buffed I'm arround 32% haste. I have to add that I have T14 4p and EoT. This means I will regularly go over 50% haste. Is it time to use the glyph? I read a lot of times that it's not worth it because of the Brainfreeze procs you loose.
What are other mages doing?
Thanks for your help