After checking Jeremy Stone's site and looking at the YB he keeps in his collection, I'm feeling a bit more comfortable:

http://www.boaconstrictor.com/index.php?productID=145

He looks a lot like my guy, whose dad is supposedly one of those Ivories that was produced by the first YB's that came from The Snake Keeper.

I'm still waiting on a response, but I'm feeling a little less like something went horribly wrong almost 18 months ago and I'm just now learning about it.