Very kind of you, James, but my "skills in the analog domain" are

quite modest; don't mind improving them, though.

Pololu is right down the road from me; running 30+ amps through

PCB traces does worry me a bit, I confess - My 1 milliohm shunt

is ~19" copper #8 AWG, which seems unlikely to contrive a failure

mode that'll keep me from getting home...
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