as i said reminder in the morning. Assuming landing and all rooms of the hallway are protected then its not really a security issue but imo should always be fitted. In my experience post isnt an issue 99.9% of the time
Oh is DIY posumer presumed the sales future?
Texecom have controlled that market for years. Don't see it changing imo
If pros keep speccing it, whatever it is gains credibility. See the electrical forums etc as well as here