This is what I wrote, it refers to sidewall bulging (the proper term is deflection), not the flat spot and my comments are based on personal experience working with aircraft:View attachment 157594
what would you call those. Those tires almost look deflated as you would say
"... the tire appears deflated. The sidewalls were quite sturdy on them. "
"Note that this is under the weight of three ground crew, yet no evident bulge"
"... more to show little bulging"
Deflection is important in landing on airstrips to absorb the shock and a reason why some tires require high pressure.
In the end, it is your 3D model so...