This is how I built my Mind/Energy//Psi. I like the idea of just setting Domination to autofire and having it go on its own. I have Hasten and Mind Link bound to my Q and E buttons, respectively. I'm considering binding Power Boost to a button as well, but don't have that done yet. Focusing on recharge, I find it pretty easy to cycle Power Boosted Unleash Potential and Mind Link with Barrier to keep myself with pretty high defense most of the time.
Incidentally, without Hasten, I can still lose permadom by having a long animation power go off, being slowed, or by queuing up a power that is slightly out of range and having that take the place of the autoclicked Domination button. So, I like the idea of being able to perma while having the benefits of Hasten, but not depending on Hasten.