^You do some funny math there in NC!
Is that just like the terry Allen factor of safety principle or??
Or since the mfg date of the tires is 100% supposition, you’re just assuming worst possible case as if it’s a fact?
FWIW, I just bought a 2017 trailer this year. Original tires and they have a mfg date of Feb 2017 iirc. I recalled looking at them and thinking they just had their fourth birthday this past spring when we picked up the camper.
I get the trailer tire thing. I do. Have had many light duty trailers and there is some merit to not letting them get too old, but no need to take it to the extreme.
Like the ole boy on here who used to post about changing his trans fluid after every road trip….