@ktemkin I seriously think there is a big market opportunity in technology for fitting/finding the right size/shape/... for the bra market. Internet is full of alchemy-loaded magic tutorials on how to do this, stores try to convince people that their personnel can do it, but the only thing to say there is that most are wrong and/or don't work. Unless you are a very very standard size. At the moment the body requirements are just slightly out of what you call "easy to stock" sizes, it's a huge pain. Literally. As a result many ladies are walking around in pain, just because they gave up on the thing and accept something what is actually maybe even harming them.
(says a guy who wasted vast amounts of time on trying to make sense of all this for his partner)