Instead of an opinion I'll pass along a story.
Years ago in the 70's I managed a farm store in the Nebraska panhandle. Had a customer running our bias tires on his cattle and hay trailers. About once a month he came in for a warranty tire as the sidewalls would give out. Knowing he was in the sand hills with a lot of those roads that were really just two bowl shaped trail ruts, I made his a deal.
I would put 4 new radial tires, (at the time LR70's) on this trailer and if he didn't like them they were his for no charge and if they worked for him, he could come in a pay.
He paid after a couple months. Put them on all his trailers. What was happening to the bias tires the sidewalls couldn't hold up to the bowl shape and the radials just folded to form.