Quote Originally Posted by Razushu View Post
I'll keep starting with Haste because I have it, and I've yet to be told to let the WHM haste the group so the point is valid.
No, it's not
Group w/ you = everyone has haste
Group w/o you = everyone has haste.

There's no haste gained from you being in the party. You just alleviate the whm the tediousness of casting it fast 4 times vs you casting it once.