[mikewvp]

Something to consider is your table image, if you start open raising with all kinds of hands UTG, your opponents will call a bit looser, or reraise a bit looser. I would think that this would change your EV quite a bit because you will get more opponents and when you do get cold callers or reraisers their hands may still be better than yours but not monstrously better (what I am trying to say is that if you are open raising UTG with A9s, you might get reraised by AJo, where otherwise the AJ would probably fold). This is ofcourse assuming that your opponents start noticing how often you raise preflop and the quality of hands you raise with in EP.