[Bantam 1]

Well my experience thus far is:

1) I only full buff at the start and before tougher mobs/during breaks. If I'm the low level dude in the group and I'm like going to get a lot of resists... I'll full buff always (most efficient use of mana).

2) I like the feel of a shaman because the slow is starting to get really noticeable and so are my buffs.

Taking that into account - I haven't felt annoyed at all.