This is what Big Gunns has to say. If you're worried about the "cage aggression" of your BALL PYTHON!!!!!!! You better be a female....and a very leeeetle one.
Same cage people. It's a BALL PYTHON!!!!!!!
Too true.
IMO, if feeding in-cage is good enough for dangerous snakes like hots and giants, it's good enough for BPs.
I always feed all of mine in a separate tub. I have my reasons for this and don't plan to get into it, really. Suffice to say that all of my snakes eat just fine and are doing wonderfully.