I have an LG C1. I had it calibrated by the retailer upon release. But I just ran some near black test patterns through it and it turns out the calibration crushes a lot of shadow detail. Thankfully I was able to get some back by raising the brightness 2 or 3 steps in SDR/HDR. There is still no afterglow on a 0% pattern in a pitch black room so I'm happy with that. However the DolbyVision calibration is shadow crushed and I cannot get the detail back without getting an afterglow on 0%. So for now being that shadow detail and real black will outweigh any improvements I get from an RPU layer how can I disable DolbyVision on the Z9X and only display the HDR version?