Soho is the best area to shop for gear. While there is a lot of great gear in Clone Zone, Prowler, and 50 & Dean, there was not that many thongs to chose from :-(.
It is a lot of fun to shop in person and try gear on straight away (and not fully closing changing room curtain to enable those interested to get a peek ;-)!).
Yes, Clone Zone in Soho has a mirror opposite the change rooms. I had the curtain partially open so that people could watch in the mirror if they wanted. Tried on various gear including a Marco Rubix thong - which I bought :-)!