Activating DM/BM-161 some time ago in bad winter conditions I put the pole with the 6 m vertical wire on the upper platform of the small look out and was working from the lower platform. (I’ve got the feeling to be a little bit sheltered 
.)
During a SSB contact with 5 w on my side I heard click … click … click… click click click and the signal was going down a bit. But it was enough for the QSO. On the upper platform I’ve found the collapsed poole and the wire hanging on both sides of the railing.
Last summer I made this and got a information for an official recommendation from Paul.
73, Ludwig