My only point is that in MC with these changes in MC, when Tools --> Options --> "Hardware accelerate video decoding when possible" is unchecked it looks like YADIF is being used (higher CPU as you would expect) yet madVR is reporting that it is deinterlacing yet the VPU stats indicate little is happening. I would have expected that if deinterlacing is done by LAV then madVR's would show that deinterlacing is OFF. Is it possible that the output from LAV when "Hardware accelerate video decoding when possible" is unchecked is still tagging the frames as interlaced when they are not?
Happy to test with the cheese slices, but what which one would you like me to test on?