I haven't read all the posts (I stopped after the debate about being domesticated or not) but back to the OP.

I have 3 balls, we are feeding them today for the first time. We have had our normal for 2 weeks with no luck on eating. We offered her in her enclosure with no luck a week ago. The other 2 we just got this past weekend. We are undecided about where to feed. We had a redtail boa about 4 or 5 years ago that was about 4 months old when we got her. She was very sweet and docile, we could handle her anytime we wanted, a great eater, never missed a meal. We fed her in her enclosure, after about the 4th time, every single time your hand went in her cage, she would strike. Not a scared strike, but a food mode and she drew blood more then once. It got to the point where you could not change her water without being bit to the point of blood. We fed her once a week on the same day, changed her water once a day and handled her about 4-5x a week.

I truly believe that feeding in her enclosure caused her to act like this. Maybe it's a boa thing, I don't know but I don't want to feed our balls in their enclosure. I hear all the arguments for it, I understand them and they make perfect sense to me. But given my past experience, I do not want to take the chance of my balls being aggressive. Maybe I'm crazy and some would call me wrong for thinking like this but given what I went through with my last snake, can you blame me?