[shilala]

Lance, the probe stuff you're using now is more conductive. What I'm wondering is if you'll get a further amp push around the death probe?
If there's no fish around, it's hard to tell if they'll get stung, ya know?
Maybe they worked backwards to the graphite so there's minimal effective zappage at the killing probe point?
I don't know if there are any fish in your tank, but if not, maybe a couple feeder tube trained damsels would make good test subjects?