I have had a 7 foot Columbian Boa, a 9 foot Burmeese Python, an Albino Burmese Python, and a small Rosy Boa, plus some odds and ends Scorpions, Tarantulas, and lizards.
Here was my Boa (Rajah) at the start:
Grew to 7 feet in four or five years:
( Above is a six foot long home made enclosure for her )
Here is my Burmeese Python (Samson):
I wish I would have kept my Boa.