Anyone know how the mana regen ticks work?

[Vondra]

I've had this problem since starting on p99 a long time ago.

It doesn't happen all the time either.

Was a pain when quad kiting on a druid where I wanted to run away, med, run, med, cast, run, med etc.

It's actually something that has prevented me rolling a shaman since I figured it would be a pain dealing with it constantly when dealing with working cannibalize in between ticks.