Once a month or so out of Miami I would go to a partial panel scan on the B757 using just whiskey compass, standby airspeed, standby altimiter and standby horizon to fly for a few minutes to get back to basics if everything ever failed. Even the standby attitude indicator wasn't required on the southerly heading because of the compass lead error. That is all I had in the aeronca champ I started with so hope I can still fly with it now.