Tricky one really CC, as it should be a match on both sides, most people 'choose' the cat they like (for whatever reason) and then it is really down to whether that cat is best for that person, but in rescues where you have to make an appointment first, it is easier, as you have already spoken to someone about what you want, and they can tell you what they have in that will suit - or, if you have a website, they have already read about all the cats - and your point about rescues not always knowing is why I think foster homes are so important. You do get people coming for one particular cat and going home with something different though, but normally their choice!!