I made a short test of dynamic range is ES and MS, sorry, written in Hungarian but if you click on galleries you can see the comparison. I might say that forget the e-shutter, but this is not that simple. If you are a landscape, or astro photographer, use a good old mechanical shutter. A new generation of Sony sensors have significant detail from the shadows. But if you photograph people, however, then feel free to use the e-shutter. The nuances of facial skin is not good for the brutal level of post-processing correction, not a coincidence that Fuji DR200 is only going to set up automatic (equivalent to 1 EV plus used).