Thanks for you reply, Swiebertje I am sorry for tthe delay in responding, I have just returned from a long week cruising a big dinghy (Jeaneau 34.2) in the Ionian.
The idea of putting adults in Oppies is magic! I will pass your advice onto the Oppie team so they can get thinking about how we can adapt your ideas to suit our club. Fantastic concept.
Still hoping for more ideas, anyone?