Italia, I think it's a great phantasy that you have... and are allowed to have of course. Everybody can have his/her own fantasy. I do not share yours, but mine would be to have a club full of 1m85 tall, slim short black haired ladies with an A-cup and "teilrasiert". Unfortunately, this is not realistic as your "all black" phantasy is not realitic (even though it might be a little bit more realsitic than mine, I have to admit :)
There are always several black ladies in Babylon, there is almost never a 1m85 tall slim lady with short black hair and A-cup and teilrasiert ;-( ).
Anyway, I think that Babylon always has a great line-up and mix of choices, and as Aachen61 rightfully points out. Most likely we can have sex with only a few anyway, so if there is 1 or 2 girls that meet our preference we should be fine with that. And up untill now I've never left Babylon without 1 or more sessions, and the maximum number of sessions that I had on 1 day in Babylon was 4, and even that was with only 3 different ladies. So even if there would be 30 ladies that meet exactly all my phantasies, I would most likely be able to have 3 or 4 sessions.
Of course that does not meant hat you might be able to have many more session per day. I definitely don't wan't to judge your "capabilities" ;-) So, sorry, but I think that your phantasy - even though it's a very acceptable one - is not realsitic in Babylon, but please come and visit the club. It always offers a great choice, and even if you don't find a 100% match, I'm sure you will find plenty of 90% matches and have 200% great sessions with these ladies too. Good luck!
bart007