If you are into boas, one thing to pick up on is the differences in head and body shape. Sniper has a head in between a Colombian BCI (BI) and a BCC (BC) with a taller loaf body than the typical Colombian so he's a little of each which is what the locale is said to be. "A natural cross", according to Russo's book.
However I see a lot of differences between JM's two boas here. Both head and body shapes are distinct and will become more-so with age.
Richard,
When you can post, you'll have a lot to add. You seem to have a sizable and diverse collection.