I figured I would start this blog with a question I have been asked quite a few times by people who have watched my YouTube videos. I have always run my RK with the attunement panel minimized to the ring surrounding the auto-attack icon.
This is very simple to do: go to options, UI settings, and select the "small" size.
For most RK's, especially end-game RK's, attunement becomes second nature: you can look at you skills and know where your attunement is at any given time. I really never even watch the attunement icon except for when I need to switch from DPS to Healing or vise-versa.