More and more of these chopper stoppers are appearing all over the UK - and not necessarily where you might expect, ie on hill tops/high ground. There is even one on low ground on the outskirts of Telford! Within LFA 9 and its immediate area we have local warnings, but further afield the AIDU warnings tend to be almost after the event. It would help if these masts could have some form of visual marker, but lighting is probably out of the question and anything else, such as a streamer, would probably affect the very purpose they are there for. Even different colouring is unlikely to help as they are so thin.
One day soon someone, most probably rotary at 100ft, is going to hit one; I just hope it's not me, although I've already had a couple of close calls.