Send the first twenty approaches home: your pontoon, your boats, your demonstration. On Saturday you see who practised, and where each of them left your track.
A student who has made twenty approaches at home spends your hour on the approaches that teach.
A club night with a harbour on the screen: the same berth, the same wind, everyone in turn, graded on seamanship, and the argument afterwards with the runs to replay.
Clubs get a free group. The class view above a handful of members, the codes and the harbour service are what a school pays for.
The first schools shape the class view and the codes. Say which pontoon you teach at.