I finally tried a 15' MP Certified -> Blackbird -> 15' MP certified combo and thought I was going to pull it off. It's just not going to happen, though. This is my second attempt at the Blackbird and it just doesn't seem to do what they claim for me. I tried going directly from the Oppo 203 to a JVS RS500. I did get a handshake twice. Once I got the handshake, I was able to get 4K60 4:4:4 to the projector. If I turned off the Oppo and turned it back on, I would be out of luck again. It was obvious it was not going to be reliable. I have no idea what would make it "work". I had better luck with the PS4 Pro. For the most part, I was just trying to get the same signal I can get now with a 30ft Cabernet to start. Most of the time, this configuration failed. I couldn't reproduce my current results with the Oppo most of the time, but the PS4 Pro was able to output full 4K60 RGB consistently. Of course, as soon as I wasn't going direct from the PS4 and went from my receiver (Yamaha Aventage 3050), I lost it.
Edit - I forgot I had a 10' MP Certified cable that I didn't bother returning since the return shipping was almost as much as the cable... I tried it in place of one of the 15' cables and had the same results.... but, after unplugging/plugging-in the cable to the blackbird repeatedly, I finally got an HDMI handshake and was passing 4K60 4:4:4 from my Oppo 203 through the receiver and then to the projector. That was a first. I put the 15' MP certified cable in the chain and did the same thing, I was eventually successful. It's too bad - I was glad to at least see it's possible since I've never been this far before, but repeatedly unplugging/plugging-in cables every time I want to use a 4K source obviously isn't an option. If I switch inputs, I can't go back to the input I was just using without starting the whole unplugging/plugging-in game again. IMO, the Blackbird has to not be doing something great. I've had 25ft working before with a passive cable. You'd think a 15ft + 10ft cable could reproduce the same results successfully if the Blackbird was working correctly. I've tried a 15ft + Blackbird + 6ft combination and couldn't get it to work - the 6ft cable was an active Luxe cable, though. Anytime I put it in the chain, nothing works.
Last edited by BrandonJF; 02-14-2017 at 08:07 PM.