Dawn Carmen from what I heard mostly 60's/northern persuassion, some crossover, I myself one 70's rest 60's I think, Andy, Mick and Butch biggest percent were 60's. Dave already posted he played 7 or 8 % moderrn I think, Cliff across the board as did Sam. I would say it weren't too far off the 80/20 you mention at most 70/30, certainly no where near the 50/50 mentioned elsewhere.
There is no game plan with what the DJ's play, just told to please themselves and to play what they like. I think the only ideal Andy has in his head when he assembled the DJ team, and selects the DJ's is that they will express themselves and keep the music as fresh as possible.
We all understand that you cannot go obscure every record and that there is a dancefloor to be filled but imagination is what is wanted and asked for, not just the same old same you hear week in week out although it is accepted that you will hear some of these.
I know the residents and guest alike love Djing at Lifeline purely because of this policy. mI think the grin on Dave Thorley's face said it all Saturday night