I will say one thing about Calvin, he does know all the tire regulation BS. Saying that one only has to use common sense when replacing their tires. If a person has 6000 pound axles and puts tires on to cover that axle rating and is not overloaded on tire spec I would say they have no worries.
It does seem that these tire threads get way out of whack when people start talking about replacing tires, especially in a case like this one-replacing tires with lesser ones than what the "placard" says.
One question that I have is does anyone know of anybody`s mothers`-uncles`-friends`-niece who actually was ticketed for using non placard tires that covered the axle rating-99.9 percent probably not.
Common sense goes a long ways, but some people need everything spelled out for them.