So, here are some pics and you can see that people started to file in and train. Pros and beginners.
This is the inside of one of the trailers someone would stay in.
Practicing on silks.
Here is the craziest; you know when you see someone in a movie go flying through the air after an explosion or something? Ever wonder how they do it? Nitro.
Without the nitro:
With the nitro:
All they do is run up to a small board/platform and then it sends them flying through the air. It's apparently the most dangerous thing in the stunt world. I can imagine why.
Here's a video about Bob.