Mary,

of course people can use the blocks for limited applications - but a trampoline?? Anyway, I am working on the principle that if someone wants it for their own use they'll get away with it if they are remote, and aren't collared by the law for some other petty crimes. If they plan to use it within the sailing world, they'll come unstuck. We are protecting ourselves from the people that think they can re-equip their boat cheaply (I don't think there are many/any of us genuine sailors who would do that), and from those who see an incomplete boat on eBay etc and figure they can get it cheaply and double their money by refitting it from the local self-selection pick'n'mix that is the average boat club. Of course Hurricane 052 may have nothing to do with our losses, but "we'd like to eliminate it from our enquiries" as the police would say!