RE: HS challenge, HS circuit, and HS training. which o...
I have High Step Training and High Step Challenge, and I agree that High Step Training is more difficult. However, I don't care for its music at all. I did HSC last night, and I found that the music makes the workout more fun for me. I like the music in both Imax 2 and 3, and I have trouble with some of the much older step tapes of the music.