Industrial Commercial Electronic, Inc. (ICE) (c) 1997 --later aquired by Ideal-- had a GFCI test function on its SHURTEST for several years. The original ICE units displayed the trip current in milliamperes; after acquired by IDEAL they displayed seconds to trip, adding 1 miliamp per second.
Using a Suretest for most GFCI installs, I've never found a reading over 6Ma or 6 seconds, but did replace one that tripped between 3-4Ma. This particular GFCI was outdoors, behind a spring loaded cover, which became an increasing nuisance over time.
Replacing the old GFCI & connectors fixed this problem, but arcing is typical with old Scotchlocks, burning new paths to ground, so the relative low sensitivity of this old GFCI may have been an unrelated coincidence.
I would like to add, in the 1990's American Business Schools taught their management students that workers from India may follow a caste system, not familiar to Western cultures. Rather than explain the caste system, they just said, "Do not expect to have any authority unless you are clearly a manager in charge."
Authority between apparent peers in a caste system may require more references to published standards than most trade persons are accustomed. Few are disciplined to provide such effort, much less on unpublished internet forums lacking remuneration. When given for free, the amount of time people devote to composing authoritative citations --beyond a code reference-- requires a lot of motivation.
Even for someone schooled in the Kings English nearly 50 years, some technical concepts remain impossible to compose in one sitting. Its less trouble to stir the pot of confusion, and be amused with the agitation.
