I often don't understand one thing here at all, many want to earn money with it, which is okay, but where is the problem that you can also give the second person exercise? She sits there often everything would be rigor mortis, I changed things myself and then gave the second person a complete movement, which is child's play, unfortunately a lot is always the same, which becomes very monotonous in the long run and also the reason why you then is no longer a supporter, no one watches the same film every day, you do great things but change the principle and the way, the dances are almost all the same sorry