No, remember, it's not stunting...it's managing...
"managing" a snakes growth rate sounds really fishy, how would you go about this? Once a month, twice a month feeding for a hatchling? More, less?
Why do you want to make the snake grow slower then it is natrually supposed too?
And even on NERD's site, he says you should feed a meal once a week and that if you are trying to maintain their growth it can leave with you an always searching for food snake, and that's not good if you want to handle the snake a lot..