I did send a patched version of the flicker fixer to Christian, but that obviously didn't improve it "enough" for him. Trouble with this patch is that I would have to do a new CE measurement (as the patch uses RF transistors in the output stage), which is out of proportion cost-wise.
I have a suspicion that it's not even the output stage, but just the cable, which is from a different manufacturer. The pinout is identical from V1 to V2. Can you verify if that makes a difference?