^ Ok, my bad. I haven't run into those issues. Id go off the gauge pressure and call it done.
Fwiw I had a new trailer tire, never been done the road, lost half its air last week about a week after it was installed. Other 3 were good, new valve stems and flawless rims.
Ended up the tire was not seated all the way, it popped and creaked as I filled it back up.
Thinking about this thread, I been checking it every day or so to make sure it's not leaking down before the trip tomorrow. For kicks I used 3 or 4 differnet random pressure gauges. All the gauges were within 1-2 lbs.
you can't go wrong using the pressure gauge.