So that PCB board replacement can handle how much voltage for long periods of on time? At 17v the sound it makes is pretty audible, but the flow does look insanely fast. It would be great to see how head pressure reacts to increased loop restriction versus the MCP35x.

PS: Nice vid. Thanks for that. I had heard the legends that were the DDC2's, but never owned a DDC until the 3.2 waltzed along... now sort of wishing I had so I could mod it.