the colombians, or common boas are bci's. there is a colombian bcc but they're expensive and not really around at all. some people even dispute that there are any. but yeah, chances are they'll stay in that range, but if you want smaller maker sure you get a male. i haven't seen any 10 foot boas in a while, but i did recently see a 9 ft female somewhere. i think you said in another post you weren't really interested in the central american boas or island boas because they tend to be nippy, so a male colombian would be right for you.

but there are a few other ssp of boa constrictors floating about, and although same may be more fragile and less common, oh wow are they impressive. but we'll save them for another time.