The Santorin as far as I'm aware was not fitted with the the super maramu top furler fittings, as standard, but with a second tie of point, above the second foil groove. I've flown the Balloner on the Santorin  using two different methods. The first for long down wind passages, is to bring down the genoa and tie of the Balloner to the top furler fitting and host the two sails together, in this way both sails can be furled in together. On short runs, the balloner can be hoisted seperately,  once the genoa is fully out. Both systems require practice, but with the second method I would not recommend it for a crew of two.  I have to say that its a fantastic addition to the sail kit of an Amel.