I think they're all equally hard. They all have their own techniques and when you don't train in that technique then it's difficult. Y'know, especially for somebody in a ballroom who's use to stepping heal-to-toe and they get into a jazz routine and they're up on relevé the whole time. So everything has its own technique and when you get use to one way, it's difficult to switch.
Nancy T (interviewer). (June 2009). Napoleon D'umo Interview, ABDC 4 auditions. New York City: BloggingBestDanceCrew.com. Retrieved July 24, 2009.