First, here's my big girl Haurie. Unknown origin, as I bought her at about 1700g, with another large girl.
Secondly, I kept two male ball pythons together, and when I did seperate them, both ate better, gained weight at double the rate as before, and calmed to be handled easily any time.
Thirdly, I kept ten baby balls together, and seperated them into two groups of five, and then finally into individual bins, and they ate horribly in the large group enclosure, terribly in the small group enclosure, and superbly in the individual enclosure. In the individual enclosure, each snake would stay in a hide, or hang out in a section, instead of constantly roaming around, and trying to get out.
I know it's not definitive, and it's not a scientific test in lab conditions. I just wanted to let you know what my personal experiance has been.
I think that more than one snake can be kept in a enclosure if it's properly set up, and the keeper is very experianced and knowledgable about that species, but I don't see any real benefits to keeping more than one in a enclosure.
Welcome to the forums, and I look forward to the pics if you can get some! And pics of your other snakes too! Especially pics of the enclosures.
edit: Oh, and I'm hoping Haurie is gravid by my het clown male!! *fingers crossed*