White mage a Mage first, Healer second

[Alice_Rivers]

In return I lose Lightspeed of course, so healing itself on the move becomes super tricky.

I don't see why this is necessary. Lightspeed is a mobility tool, not a Presence of Mind equivalent, removing it doesn't make sense especially if all you're doing is making dps oGCD. I use it as much for keeping dps uptime as for healing.