I do believe this but by your calculations 99% of people buying chains don't know the difference between cables, quick fit, cam tension, or by god don't tell them what a v-bar is as they don't know and don't care.
I have noticed a lot of people don't ever try the chains until they need them and then find out that they are the wrong size and run them anyway. I think these are most of your 90% of inproper installation. FYI the last two sets of chains I bought had inproper chains in the packages, i.e. two sizes in each package.
You still need common sense with cables and most people just don't have it. These are the people doing 50mph down the road, with inproper installed cables that have a couple broken cross cables, beating the fu@# out of there fenders.
Man this thread got off track, as the chains needed for where we need to go, with our tow rigs, in the snow, most of the times, requires a stronger better chain.:awesomework:
