• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

Type 85 Tube E80L Triode Strapped Zen Inspired Amplifier Build

Looks like the video misinformed you. common cathode resistor disbalances even more, since the tube with higher gm pulling more current decreases other tubes' current even more increasing negative bias voltage. It is done sometimes to make stereo base wider, without shunting cap.
Nice amp exterior though.
 
Yeah, we've gone over that subject. when I get my new switch in the mail I'll try it both ways. The thing is, this isn't my first amp and I got to say that it sounds fantastic. The way I have it wired, it will be easy to change. It's a learning process.