X 5 Ele Shams here, and yes they respawn quickly. I grind up to Doan, and back to the entrance. I lay down 4 heal and 1 Mana as well. I have one toon drop Earthbind for runners, 1 Drop Stoneskin, and x 5 Grounding when i'm pulling casters (adepts and such). I will drop X5 Searing totems after I gain aggro if the pull is too big. I try to aggro each mob and any adds to save my totems. Chain generally works well for this .

I use a macro I got from the wiki for healing. It heals my driver with two clones and the other two continue to cast, but they only dps if both healers are still alive. If healers are dead the dps clones will will heal the "party1". I have that macro keybound on all slaves. I also use healbot on all my toons so i can quickly cast a lesser heal on anyone that may need it. This allows the others continue to dps.

There may have been a more efficient way to get this done, but this worked for me.