Cinematographer/DP on commercials, shorts, features, and music videos. Based in Chicago and available for travel.
Step 1: Repeat your mistake with the lines on a completely black frame
Step 2: bring that video into an after effects composition and put the layer on top of the screwed up layer
Step 3: Play with layer blending settings until you get a desired result. You may also experiment with inverting the black-frame video, and possibly transparency.
This is the core of the argument for getting a BA or MFA in film, instead of a two-year technical degree.
Definitely disclose any relationship you have with the manufacturer, and disclose how you got the equipment you're testing.
If you're not comfortable in 8-bit log, shooting in a more standard colorspace is entirely ok. If you are accurate with exposure and can control the range of the scenes with lighting, you can get great results without banding.
Successful feature films have been shot in 480p 4:2:0 8-bit, so don't let the technical stuff distract you from the more important story.
LCDs are just terrible past about 5 degrees F. I would be curious to see how OLEDs do in extreme cold.
People seem to have a ton of questions about shooting on the Omni, so I made a crash course. https://goo.gl/2exUda