It'd be a real win win for the punters - it would give dancers at smaller venues the opportunity to get up to records they've only dreamt about dancing to (at OVO events at any rate).
The DJs might worry about losing their 'USP' but they've still got to have the chops to sequence the records in such a way that it creates a magic night for the dancers.
And a DJ set 'featuring an exclusive spin of…..' could draw more people in.
I reckon a simple, generic contract that could be made available to all participants, requiring 2 x signatures and 1 witness should do it.
It's the future, Nev!…. then again i'm a dancer, not a DJ.