Vintage ATCO - had almost forgotten 06/24, though I don't remember it being used that often in my days (post 1968). Certainly use of 06 was very rare as I remember it.
Was it implicit that 24 traffic would remain north of 26 if there was a possibility of a go around. - or did you just "not go there" i.e. de-conflict.
It is amazing though how many airports running at not much more if anything than Luton's 3 million pax in 1973 shun or almost shun GA these days - Bournemouth for example.