Well, 15 minutes of a bit of script hacking indicate that the following mention high visibility clothing in the AIP entry:
EGAE - Londonderry/Eglinton
EGBB - Birmingham
EGBJ - Gloucestershire
EGBN - Nottingham
EGBO - Wolverhampton
EGBP - Kemble
EGCC - Manchester
EGCK - Caernarfon
EGCN - Doncaster
EGFA - West Wales/Aberporth
EGFH - Swansea
EGGP - Liverpool
EGGW - London Luton
EGHH - Bournemouth
EGHO - Thruxton
EGJA - Alderney
EGJB - Guernsey
EGKR - Redhill
EGMH - Manston
EGNH - Blackpool
EGNJ - Humberside
EGNT - Newcastle
EGNV - Durham Tees Valley
EGNX - Nottingham
EGSC - Cambridge
EGSH - Norwich
EGTC - Cranfield
EGTE - Exeter
EGWU - Northolt
EGGD - Bristol
EGHC - Lands End/St Just
EGMC - Southend
EGMD - Lydd
EGNC - Carlisle
EGNO - Warton
EGNR - Hawarden
EGNS - Isle of Man
EGPE - Inverness
EGTG - Bristol Filton
No real surprises then. The script isn't bomb-proof, so it may have missed a couple (although I checked the EGLL entry manually - not a peep about anti-death clothing - nor Shoreham)