I simmed both Star Gate (875) and Pharamere's (875) in single target and multiple (3) encounters and my Unstable Arcanocrystal 865 still came out ahead. Since I have Sephuz I considered macroing Phere and Sephuz it to ME (last thing I need is another keybind to manage). Not sure how it would work out but maybe every other time it would be a benefit for multiple add encounters. For now I guess I'll stick with UA.