I understand one can jump from one PE level to the next once you prove you can Master a PE without needing to go through 12 weeks of training it.
So, once we find our PE level to work, can we start the PE at Week 5 if we can already Master Week 1 or start at Week 9 if we can already Master Week 5?
Also, if we fail to progress from say Week 5 to Week 6 within a given PE, do we go back and re-do Week 5 for one week and then give Week 6 another shot. In other words how do we deal with failure to progress on a weekly basis.