What it needs is a proper Synthesizer mode for stereo like Sanasui used. And then you won't need to boost the rear chs. Oh, and an input balance. But other than that it's practically perfect.When you get the Blue Eyed Monster, nphxguy, don't hesitate to really crank up the rears on upmixed stereo recordings where necessary. There are recordings where it may seems as if the SM isn't extracting enough material for the rears; but it's there and just needs a little help introducing itself.