I was toying with the idea of replacing the stock switch on an X-1 probe with a "pressure switch", that is worked into the probe holder...In other words, when you pull the probe from the holder, it turns on, and when you place it back into the holder it turns off. That way, I'd never forget to switch the coil back on (or accidentally bump the switch) when I wasn't using the probe...Whats everybody elses opinion?