You know Don your probably right.
Still working on that part.
If I saw it I probably would not know anyway because I don't know what it is. (Yet).
Maybe one day we'll stumble on to it.
Got to keep picking away at all those variables, and keep reading.
Meanwhile I'm working on what I can with this tube set to keep pushing hopefully in a positive direction.
These tubes may have to be more tuned in. Meaning the individual capacitance of each tube set when built should have been matched. The weight of each tube could be matched so each is the same mass in each set.
Many things could have been better prepared.
Now I should match each with its own coil to try to fix my mistakes which I think is possible.
If done properly from the start this may have been a lot easier.