I never questioned it, and I don't know the circumstances.

With regard to spring rate, yeah, cyclemut's looks a little soft to be a good highway vehicle. Mine will be stiffer. I'm going to play with different setups, but what I have in mind is a stock wag front pack with 1-2 extra fairly flat leaves - not much more arch, but definitely stiffer. The SUA setup on my pickup using the 4" rough country lift springs is pretty stiff, and the truck has less body roll than it did with IFS.