I recently went thong shopping in Soho. While there is a lot of great gear in Clone Zone, Prowler, and 50 & Dean, there was not that many thongs to chose from :-(. I did buy a nice Andrew Christian Trophy Boy jockstrap and a Andrew Christian racer bikini swimsuit at Prowler. I could look at fellow shoppers over the changing room door while I was trying on new gear.
I also bought a Marco Rubix thong at CloneZone. The changing room has a curtain, but I closed it half way at the very most. I did notice a few guys making a couple rounds past the changing room to watch my progress and I was in no rush. I was thinking of going out and asking staff what they thought of the fit - maybe will do that next time!
While many of us buy online, it is also good to support these shops - as well as a lot of fun to shop in person!