I would be very interested to see some of the waveforms from the nest of snake style builds, as well as hear the amp at idle. It must buzz like a bee and hum like a busy housewife doing chores. Parasitic oscillations must be everywhere.
btw, If you ever want to see a marvelous piece of engineering, pick up a mid 60's mechanical cash register, if you can lift it. About 1500 parts including the "dog legs". I worked on those for a while in the 80's. Very complicated mechanics and inevitably the part that failed was buried at center mass. Would you like to upgrade to an electronic, cause this can't be fixed. A regular mode of failure was known as a: Dead Lock. A Dead Lock was cause by a loose shaft, failed bushing, maybe a gear that skipped a beat or two and, the whole internal mass would bind up in jam that couldn't be unwound with a pipe wrench.
Some of the techs when they saw one get wheeled in as a trade in would attack the beast with hammers or whatever as a final act of revenge and defilement to the monsters that had caused them so much grief in the past. The only redeeming attribute about them from the tech side was: As you may recall, the cashiers used to lift the tray and put the large bills underneath. As they did so some bills would drift to the rear of the drawer and end up exiting into the rear of the drawer housing. That was the cause of the other reason to get to the beast when they came in for any reason. Pull the drawers out and look for lost cash. Once an old monstrous 4 drawer unit yielded over $100 bucks.
silverfox.