Haven't got any FIRM vids in my assortment. I'm doing a lot of leg work with aerobics, does that count? Sort of a rival challenge, does mine work better than yours! Need to work on my thighs - most inches there and I'm having some sports massage every three weeks to try and sort them out. We've been working from my calves up and it's made an amazing difference in how my legs feel and what they can now do.