If that's nuts... That's some really impressive growth, wish I could claim the same for my BCI. I mean he (? not sexed yet) is beautiful and certainly growing, but not like that. I was keeping feeding and molting records for all my snakes for a few months but then I ended up having to rush some feedings on my way through the house between overtime shifts and lost track of the who-ate-how-many-of-what stuff and never started again. For this reason I have no idea of rate of growth or any of that stuff. I just sort of feed them as often as seems appropriate and let them eat pretty well until contented. It's hard to tell if I'm over feeding but it sounds like you must feed yours a lot more than I do to get that kind of growth. How much and how often for your BCI's at around a year old?
I feel a little light headed... maybe you should drive...