At 14:19 14 August 2019, Dan Marotta wrote:
I believe you are over complicating this.Â* My advice:Â* Just look at the

tires.Â* You can tell if they're too low to fly.Â* That's worked for me
for almost 50 years.

Not so easy to check by looking at the tire on the nose wheel of a two
seat glider such as a Grob Twin II or Duo. And main wheel tires often
look OK until you load them up with pilot and water ballast.