Miranda- have you become an instructor yet? i just came across this forum, and quickly found this post. If it is at all avalible to you in your area, seriosly consider training with Les Mills. The spinning program is called RPM (Raw Power in Motion). It is headed by a world ranked mountain biker, everything you are taught is up to date and every 3 months you get new material and education. the website is lesmills dot com. It seriously is an amazing program and to me is much more simular to outdoor riding than a traditional spin class. you can check out my profile if you wish, lessmills dot com slash willadean
I had knee surgery and this class rehabed my knee. it is amazing.!!