Now they have some nonsense with left turn at 3nm
...which is only published in the IAIP under EGKB AD 2.21 Noise Abatement Procedures section 2 'Noise Preferential Routings – IFR Departures', so the pilot of a departing VFR aircraft would have no need to read it before setting off. Clearly the entry needs updating if it is to have clear relevance to VFR departures. Otherwise, I have always understood that operating to/from an aerodrome requires tacit acceptance of their procedures, so if they say that the noise abatement is 'roll inverted at 50ft agl and turn on track' then that's what one should do.