Yeah... I'm not counting on any definitive answers but one can hope right?Maybe he knows who the breeder is? I don't know and really... only concerned about husbandry more than anything. The consensus does seem to point to at very least a very strong BCC influence.
Sexing... from what I have read probing and popping aren't that great of an option for young boas. Here's what I see and feel - After the vent the taper begins almost immediately. When I do the touch method I feel absolutely nothing after the vent and pelvis, both myself and my husband. The tail looks long? But then I'm not sure about what constitutes long in a boa. I also don't see any anal spurs but then I have a 25.5" little guy so they may be impossible to see. Any guesses?
Here's how I did it - http://www.redtailboas.com/f15/sexing-newbornes-53676/ This seems to be the more popular method suggested by these guys for young snakes
http://www.redtailboas.com