5E3 Bias

[dpm309]

My 5E3 build (1st amp I built several years ago) was experiencing crackling on the volume pots. Took it apart and cleaned the pots and is working. While I had it on my bench, I checked the voltages and bias.  A few years ago I performed the Simplified Dumble 5E3 Tweedle Mods on it. The amp sounds great with this mod. I replaced the 5Y3 rectifier with a GZ34 along with other mods. My plate voltage on the power tubes is 372VDC which gives me a bias of 56ma. This seems high for a 6V6 but the amps sounds great and have not had any issues with the power tubes.  Is 56ma too high? Will this affect the life of the power tubes?

[passaloutre]

What is the cathode voltage? Assuming 250r bias resistor?

Is 56mA per tube, or both combined?

[pdf64]

To provide a valid response, more measurements are required.

Anode voltage
Screen grid voltage
Cathode voltage
Cathode resistor value
Screen grid current

And an accurate schematic, as it's not a standard 5E3 anymore.

Does reverting to the 5Y3 cause the amp to sound worse?