Any end-game healers use a controller?

[Krisstina]

Healing with a controller is laughably easy. Just press up or down on the DPAD to select the members in your party and Voila! You only have the option of healing the people currently partied with you doing this method, so you don't need to scroll past enemines, pets etc and waste valuable healing time.

Now healing people in the open world who aren't partied with you, thats a different story.

Want to know how long would it take to switch from top to bottom...Because during coil turn 2, both tank need to pass aggro constantly. And if ur tank not super well geared , 2-3 second delay would kill him.