Well, with a 70 and four toons in the group the xp dropped significantly in ZF at 46 and then 47. I went and did some quests and then started LBRS at that point with my Warrior pleveling instead of lock... It went pretty smoothly actually. With four healers and a complete set of melee buff totems I was averaging about 1.5 hours per level on each of the toons... Which I'm happy with. Not great, but pretty good.

I just hit 55 on them. Now we're going to HFP to do some Ramparts with my Warrior I'll quest once they hit 60 I think. Maybe. We'll see