PSPO P and I couses at ASPT

Im thinking of putting in a bid to do these courses in the near future, I seem to remember in the past they were run concurrently but now according to the course diary on armynet they are not, is there now a time frame you must complete between courses?

I take it its still loads of shouting "GET BACK, STAY BACK" and then crying like a girl in your bed at night because youve got hurty bruises.