I'm going to replicate a Kamakura BD collar, but with hidden buttons. There are some working environments were ties cannot be worn 90% of the time, but button down collars are looked down upon as well. A hidden button down collar would be the perfect solution for such a conundrum.
At the risk of derailing, can you elaborate a little? I gather you're in the UK, where I had heard of some nebulous bias against BD collars as 'American', but I didn't realise that it was limited to or focussed on specific working environments: very interesting.