Showerthought: I used to ring out every wire by hand, now I let the box do it and I feel weird about it
When I started out on the flight line at a regional outfit near Wichita, every continuity check meant a meter, two probes, and my own eyeballs on every single pin. I would sit there for an hour on a 60 pin cannon plug, beeping pin to pin, writing numbers in a spiral notebook because I did not trust myself to remember. Last month we picked up a bond meter with a built in auto sequencer, and it walked a 120 pin harness in about 9 minutes and printed a pass or fail for each one. I get that it is faster and it does not get tired at hour 11 of a shift, but part of me misses knowing the harness by feel, because you learn where the chafing hides when you trace it with your own hands. The kicker is I caught one intermittent that the auto tester flagged as a pass three separate times, and it turned out to be a loose backshell ground, so the machine is not magic either. Curious if anyone here runs both ways, or if you have gone full auto and never looked back.
The part about learning where the chafing hides with your own hands got me. I used to say the same thing, that hand ringing was the only way to really know a harness. Then I watched a guy chase a bad crimp for two shifts that a sequencer would have caught in the first pass, and I changed my mind. You still catch stuff the box misses, like that loose backshell ground, so running both ways seems right to me.