Still pertinent.  BlackSly, this guide is incredibly informative.  The tactics you wrote about are sound.  I follow these guidelines when I am on my Emp/Dark Def at all times.  When teamed with another Emp, I let the other Emp provide the base heals and I buff and blast then back-up heal.
When I am alone as sole healer, I have to use my head.  I buff, then heal and then apply a hold or two (dark pit and tentacles).  Usually that leads to Fort recharging and I apply that to another teammate.  I continue that cycle, all the while watching bars and applying CM's as needed (or I sometimes stack em up on the main puller).
Anyway, thanks for confirming some ideas and thanks for inspiring new ones.  
