@wlutke Have you yet tried a very good linear power supply and aftermarket power cable on the EtherRegen? If not, and you have a spare one, it is worth trying. I found that adding a very high quality power cable that cost more than the EtherRegen made a more significant difference in the signal than just the EtherRegen by itself. But in that case, there are other switches with better power supplies at higher price tiers
I do appreciate your findings on its effect on video!