Please, ramble on! The more information the better and I could read about this stuff all day. Your description actually hit the nail right on the head in terms of what I was looking for. Something between a boa and a retic.
While I have some ears, let me ask another behavioral question: do they climb? While thinking of getting another boa I've been planning on incorporating a lot of height into an enclosure to accommodate their arboreal tendencies. My understanding is that Burms are far less inclined to go vertical – however, my understanding is severely limited so I would love some info on this.