Item Rating(potential) and Enhancement(star) System

Other things to note about self-skills
- Mystic Door, HB, Haste: Level 70+
- SE: Level 120+
I think this is just a requirement to give you the skill, and it can be on any level item still (and cast on party members at any level). But I'm not certain.

- Mystic Door, Haste: Epic
- SE, HB: Unique

So another way to prove that Unique items can get Epic bonuses would be to see Door/Haste on a Unique.

So in order to get SE and HB, the item has to be unique. I have to be lvl 120+ to use the self-SE and 70+ to use self-HB. Are those two statements correct?