I think I made my recommendation about their use quite clear.
DO NOT USE THEM!
You'd be better off with the $ 100 specials, than tires that are too small.
Ever hear the story about the lady who went to the shoe store and insisted that the store sell her size 4 shoes for her size 6 feet, and then later returned the shoes because the fell apart and she twisted her ankle? At 70 mph, tire failures can cause more than a twisted ankle.
Hope this helps.