Given the shy, secretive nature of ball pythons and the fact that they need to feel very secure in order to feed, I think it's safe to say that if you have a picky eater, moving it right before feeding probably isn't the best idea.
For other snakes, or one of those ball pythons that just loves to murder the rodents ... rock on with the feeding boxes!
The most important thing is to "'know your animal" and understand that what might work for 99% of the rest of the world may or may not work for your snake.
-adam