And then you proceed to say...
But I'll bite...
What mage has use for Mp5/haste combo in PVE? Arcane/fire are both using spirit, and if you play frost in PVE nobody sane will invite you.
And from what ******* did you pull the percentages? They look pretty wild and innacurate.
Also what part of mp5 is a pure healer stat, while arp is a physical dps stat is so confusing to you that you have include mp5 for casters in this discussion?