Just been looking at Monday morning's LHR Webtrak as I was quite amazed with the busy sky outside my East London kitchen window while I was masterminding a bank holiday fry-up! Both LHR and LCY were on westerlies.
Having tired of reconciling the LHR inbounds I'd seen decending to 4000 with the (unplotted by Webtrak) LCY outbounds I'd seen launching beneath them I then noticed how the separations really do decline surprisingly sometimes from around that 13nm mark on the ILS.
I found one instance of number 1 with a (spurious?) final readout of 87kts at 308 feet
with number 5 following up at 175 kts already overhead Brixton! And still they kept coming! Actually the "number 4" so to speak was on the parallel 27R with the others on 27L. It wasn't IMC, but evenso it implies Roffa's MATS Pt 2 must surely get well thumbed !