IS A 10 PLY BEST FOR???

I run E rated tires on my one ton Ford. They used to be 10 plies, but are now 10 ply rated. The sidewalls are typically the weak point and only a couple of plies. Radial tires run with a slight bulge in the sidewall. If you go on rough roads, especially those with fractured basalt, shale or the equivalent it is easy to puncture the sidewall which is definitely not 10 plies.