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Awesome work with the PCBs, guys! Unfortunately I neither have the time nor the money right now to get one. Plus I would most likely rather make my own PCB with a smaller form factor, but that may or may not happen... What I have done for the moment is butcher one of my older builts, which I didn't ...

If I may chime in: KDMay, is that a 47nF PI decoupling cap across the second grid resistor and tail resistor? Standard Marshall value would read 100nF, although it should not make a huge difference. Also, on the infamous handdrawn schematic it says the presence cap value is 470nF instead of the "sta...