So I spent the afternoon trying to get my JVC x7500 working without dropping/repeating frames and I think I've worked it out. The JVC is very picky about what signal it will accept and all the ones offered by madVR outside the normal ones did not work. So I started with the EDID / CTA profile (but it would have a drop/add about 1 per hour) and tweaked that a bit. While madVR's config GUI says this setting will last 7.79 hours, I can confirm it worked perfectly for just under 2 hours. Interestly, is that madVR kept updating the reported display calculation from 23.9758 @ 1 min, to 23.97608 but the end of the movie as well as the expect drop.repeat frames.
