great example of this are regen stats. By regen stats I mean MP5 and Spirit.
We put MP5 on caster mail because Resto shamans use it. We don't put it on the Elemental tier set because Resto shamans won't use that
qouted from ghostcrawler...
Now why the hell does balance set still have regen stats on it??
(would appreicate if someone could question gc about this on the us forums as im from the eu :<)