I have a strange situation when I try to heal with my G-15 set up. I have a macro on all three of my shamans. It is

/target (name of lead toon)
/follow
/assist

That is set on my key board 9 button. So what I do is target who ever I want to heal then hit the 9 button, then hit – button (- is lesser healing wave). This should make all three shamans cast lesser healing wave on what ever the lead toon has targeted.

This does not always happen though. Some of the time they heal themselves, and then the next heal they will heal the toon that the lead toon has targeted. Let me know if you know how to fix this or are experiencing the same thing. Have a great day.

Vodochild