Sorry for all the confusion. I've run 3 different configurations.
1) Jensen Transformers on the Driver board (no caps). 1a) with a POT and RCA inputs. 1b) with XLR and a Goldpoint 4-deck attenuator (Schema Option)
2) Removed Jensen input transformers from the board and replaced them with Mundorf Silver 220nF Caps. RCA inputs (Schema Option)
3) Most recently and briefly added the "outboard" Jensen trans in the diagram intron t of the driver board still with the 220nF caps.
I am now listening to configuration number 2 and that's where I'm staying. It's quiet as a dead church mouse and very musical. As I type, I'm 4 songs into the Sophia Electric 300B mesh princess.
They are a big step up from the JJ's.
I don't see an upside to working on the outboard trans configuration again. Sure I'd like a little more punch but I don't want to screw up what I have. There's a lot more source RCA out's than XLR.
I'll probably mung with the meter Steve and get a value on the Gungnir. Can't take her apart because I have got to get 100 hours on this glass