These + Tonique have been magic for slimming down my legs/thighs! I'm an hourglass, too, and when I was doing these consistently a few months back, I was having great results. I've put them on hold until the new cardio ones come out so I don't get burnt out on them.
adrien_73, they're definitely pricey, but I feel they're really great. P57 just bulked up my thighs, but these slim them down. Like Elena said, though, they're tough, and have cardio built in.