7 clubs : PPPSS
Preliminaries: try the 6-clubs version to familiarise yourself with the tempo.
J1 starts with 4 clubs and throws three diagonal passes on doubles followed by two normal selfs. J2 starts at the same time but throws a self first, before going into their PPPSS sequence: tramline pass on single, tramline pass on single, tramline pass on triple. Since the sequence has an odd length cycle, it takes 10 throws to arrive back at the beginning.
The diagram below shows the same thing, only with all the crossing throws inverted. You can try the 2 versions; it just depends on which hand J1 and J2 will start with.