Seeking some clarification from an experienced shaman...

Short story:

What is the exact range on the chain heal bounce?


Long story:

I play a tankadin/4 shamans combo and healing spells are all macroed to target (in this order):

- paladin's target target [help]. usually the paladin itself
- paladin's target [help]
- current target [help]
- self

The problem is that if I'm tanking the mob a little bit far from the shaman group, chain heal won't jump to the rest of the group. Tried to figure out what the exact distance is but couldn't figure a definite conclusion. Did some research as well: some people say it's 7yd, others say 15yd... that's a big difference.

sidenotes:

- I usually tank within 30yds to stay in the range from my totems.
- Most of the times, 4 ocassional LHW are enough to keep the tank alive. But fights like Rockmar (Slave Pens) require a lot of group healing.

Should I just change the macro so each shaman casts chain heal on himself?