I recently had my set calibrated by an ISF certified tech. I immediately noticed the picture is much darker than before. Initially I had used VE HD basics on blu ray to set the black level. When I popped it back in to see how the pluge patterns looked after a professional calibration I was surprised. None of the pluge patterns show on the display. This can't be right. I watched closely as the tech used his equipment attached to the HD screen to record output levels, but I can't help but think the black level is still not spot on. Any ISF techs in the forum that can tell me this is no big deal?