Thanks for all of your answers. I did go ahead and get certified – I do love the format and the music is very motivating. I am surprised though that you don’t need a Group Ex certification to become certified! I do have that and my Personal Training certification and I have been in the industry for over twenty years but if you just attempt to get certified and don’t have any instructor training and still somehow manage to get certified – now that would be disturbing! I can definitely see how it can get out of hand though if there are a lot of people in class – because as an instructor you are supposed to be demonstrating the workout and watching their form, etc. You are not supposed to go around correcting form as a Body Pump instructor. Hopefully if there is a big class, there is more than one instructor.