What clear indication is there to a pilot to use the trim cutout switches?
I have a suspicion that, for old school 737 pilots, if the trim starts doing something, anything, that
(a) is contrary to what you command or expect, and
(b) you can't control it sensibly and appropriately, then
(c) the switches are used before the head scratching might commence.
I can recall a few odd ball situations contrived in the sim where this was emphasised as being a suitable response by the pilot.
Then, again, perhaps training standards and emphasis, these days, are a little different to days of yore ?
.. and ... that was back in the days where hand flying and raw data were valued as being of routine importance from a skillset consideration. I don't know that I would have liked to face the situation as a routine autopilot man .... routine hand flying put the pilot much more in the loop, in this dinosaur's opinion.