I just got the two more of the 6DJ8 quads off to Andy and Jose.
For those that didn't know, I was selling matched Sylvania 6DJ8 quads, with identical construction to the ones that Kevin has successfully used. I had a batch of around 75 of these tubes and have been able to get good matches across all 8 plates. They've been tested by three people, including the irreproachable Mr. Circle Hole Cutter Tech and myself. I have two more quads available if anyone is interested, please PM me.