A N M - the last time I "arrived" at LCY a pair of lights some 100-200m from the threshold denoted the point after which, should a touchdown not have been achieved, a discontinued landing must be carried out. Ah, having just noticed your an ATC'er I'd say you probably know that! Won't the 400's requirement to be pushed back onto stand cause a few headaches?
M P - ta. Enjoy the 'City