Maybe the unequal turning radii of tandem axles is an inherent characteristic of them that could be a unrecognized contributing factor in premature ST tire failures and common to any tire brand?
Might have been a good question for the retired tire engineer that used to be allowed on this forum...
Yeah..we ask for a engineer and finally get one.
Anyhow..
Tireman9 blog address's that issue on his website
interply shear.
Some tire types are better suited to resist ply shear forces....some tire types are advertised to be better suited to resist ply shear forces but don't perform long term reliably as advertised.