Jackie~I thought I was the only one meh on Cardio Lean and Cardio Melt. I previewed them and can't bring myself to even do them. Can't put my finger on why.
The only good thing is that I got one from a friend and one in a trade so I wasn't out any money on them.
Worst~
Helen, I did the same thing with a cheapie mat from Ross and had the same results that you did. The funny thing is my Danskin double thick mat from Walmart was only about $5 more and I've had it for years and it's great.
Best~my Jessica Smith 10 Pounds Down Better Body Blast and Cardio Abs.