So from the blue tracker I learned of the existence of Glyph of Fel Regeneration
This would give Affliction and Demo the same mana regen as Destro, in exchange for not being able to lifetap. Now we have to give up a glyph slot, so that's allready a consideration, but what else? It sounds like a devillish deal, no more health loss and gcd's from lifetapping at the disadvantage of limited mana and the very real chance that we'll be without mana at some point and have to wait for regen. Is it worth it, you think, to you personally in terms of playstyle or mathematically?
I can at least see this glyph having a spot in my list during leveling and being out and about doing dailies. Basically anywhere when I'm not constantly using mana for minutes on end. With this glyph and the passive health regen we allready have we'd NEVER have down time.
I checked the beta but it's not on my list of learnable glyphs yet, but I hope to be testing it when we do.