so my stunt group and i are going to state for a "stunt group routine" and i was watching some videos and found one where they go up to a heel stretch then do a 360 retake(staying in the heel stretch)they end back up in a heel stretch. will someone explain how the bases and back spots position!?!?!

thank you

http://www.youtube.com/watch?v=wwFeJ6pHzmY