I don't have the total genetic answer for you. Really a taxonomist has to examine the situation. I tend to go with Russo and Rentfro when it comes to boa knowledge but there are certainly other opinions.
The Boa I have is an August 2012 breeding from Gus Rentfro. Joel and Orlando at Legacy Reptiles had him in their collection, but Orlando said they just had too many males to care for and had to let him go.
That's just plain good luck for me.
I also was seriously looking at a boa from Morti of Primareptilia. He was very helpful, and had a nice couple of males. In the end my kids were the pickers and I paid a little more, but I think I'm going to be quite thrilled when the un-boxing day comes.
I also go with Russo and Rentfro. Best authorities on boas out there!
That is just my opinion of course, lol.....
Gio, that really is a great choice! You have smart kids!