RE: Yes Hollie!
Yes, hi-lo is tougher than step. I notice that at my gym classes as well.
Ever notice that the hardest parts of Interval Max are done on the floor, not on the step?
Wish Cathe would come out with another MIC (which, I think, is Cathe's toughest tape). Yeah, right, as if my already wobbly legs and gasping heart could take that!
Patricia