Np, yeah totally have your shaman focus fire the target of your hunter. In between questing I would boost 3 or 4 of my shammies through ZF in their 40's (sometimes taking a family member as the 5th spot as looter) and I was happy how much faster I could kill the groups with seeding 3 instead of 4 and forcing a detonation with a 3 or 4 lightning bolts instead of drain life and just nuke any low-life runners with the shaman since their LB was shorter casting time than my SB.