Would it work to have a healer with mesmer as primary? I was thinking this because the mesmers get fast casting so you would be able to cast those heals faster which can be quite helpfull in fast battles. Also being a mesmer would allow for some energy transfer spells to prevent running out of energy too fast. Another advantage would be that in pvp you wouldnt get killed as fast being a mesmer as you would being a monk, right?

So... monk primary big heal, normal cast... or mesmer primary normal heal, fast cast?