Quote Originally Posted by Bhearil View Post
Snip...I don't understand healers...snip
You are correct except you don't take into account that healers have many ways, at least WHM and AST, to massively heal a crap ton of HP in an instant.

If a tank has lower HP we have to spam heal because our massive healing combos/oGCD skills will over-heal, which is worthless MP/oGCD/Enmity generation.

More HP = we only have to use out Burst heal combos and can DPS for a substantially longer time, which will out DPS the DPS diff from STR rings.
Low HP = Spam normal GCD heals and never able to DPS