My Bredls are all nice. They were nippy as hatchlings, but by the end of their first year they're typically quite calm.
Scrubs are an interesting creature. I've had some that are just as nice as my carpet pythons, and others that don't like to be messed with. My Merauke's are good as long as I keep working with them. If I let them go too long without handling it is like I'm starting over again and they're not very trusting of me. My Aru scrubs haven't calmed down much in over 1.5 years working with them. My Tanimbars are not too bad, but they're so little that I don't really worry about them too much.
Scrubs are great.....IF.....you've had some experience with larger and potentially defensive snakes. Not the easiest to work with but I love them. I have males and females from 3 localities (I guess that Tanimbar's are a different species so 2 localities and 2 species of scrubs). Anyway they're attitude varies with each animal, but as a whole scrubs are a bit defensive. I'd have to look at my records to see where they all came from.
J.