I have also paired up one of my shaman to heal my 4x hunter team. It has been a challenge to adjust to having a healer as my lead character vs a damage dealer with 3 or 4 clones. I tried to bind player and pet specific heals to my xkeys, but it just wasn't suiting me well. Kinda had me frustrated until i went through a big addon overhaul with this last patch and finally tried out the Healbot mod. So much easier!!
Healbot gives you an additional HP window that interprets your mouse clicks to perform different actions on that target. No need to rebind keys/buttons or even target the injured person. It also has the ability to smart cast while out of combat, making debuf and rez quick. So far all i have needed to use is Left: Chain Heal, Right: Riptide, Left Side: Earth Shield, and a rare Middle: Lesser Healing Wave. With S3/S4 PvP gear her CHs are full healing every time, 10k crits heh.
I prefer having 2 tank pets (Gorillas) and the other 2 spots for dps. However, Gorillas have been noticeably out damaging my Devilsaurs due to Thunderstomp (40% of the pet's damage, each pet doing 300dps at lvl 67) and fighting 2 groups at a time ... frequently.... and unintentionally... pet pathing :( Sethekk at 65 to get the Terokk's Quill was a nightmare.
I enjoy how this team plays right now, but i fully expect the harder 70s instances to be different.
