Maybe I have just had bad luck but the two times I didn't jack up a trailer were the two times I had tire failures. This was with relatively new tires on two different trailers.
I have never in my life jacked up a trailer to take weight off the tires, and have never had issue. I do maintain maximum pressure though.
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2017 Escape 5.0 TA
2015 Ford F150 Lariat 3.5L EcoBoost
2009 Escape 19 (previous)
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