I think that the days of nasty , ill tempered Dwarf Burms have well gone tbh . I have a beaut Dwarf Hypo Burm ( F2 ) and he's about 3 years old and stopped growing at just over 5 ' ( his dad was also 5' and mum only 7' ) . Both were very placid .
He's as soft as any of my Royal pythons with the inquisitiveness and feeding response of a Retic .
What's not to like about that combo !!
I know of a couple of other Dwarf Burms locally and many on another forum and all are puppy tame.
I just think their bad reputation is well out of date going off the blood stock we have over here in the UK anyways . I'll be interested to see what all the US owners are saying ...