Does anyone know, or have played around with, the "Gradation" settings on their OMD yet?? If yes, do you see a vast/noticeable difference in dynamic-range between the different settings? I assume this is a similar settings to Canon's HTP and Nikon's ADL settings, correct? Is it suggested to just leave it on "auto" or the "normal" setting all the time, for everyday/general shooting? Is it suggested to avoid a certain setting sometimes/at times?