I am
Sorry CowBoyWay I mean no disrespect but I disagree. My thoughts: many advanced herpers have been discussing this issue more and more frequently as I can tell. And so far almost all have agreed that it could happen, but it also isn't PROVEN to be the reason nor is it proven this will always create a "monster"
You said yourself ""Give her some time, she'll develop a conditioned feeding response"
This simply is not true always, or in even half the cases I have personally asked about or heard of. And I have had a growing interest in this issue over the past year and I speak to everyone I can about it. I fed every single one of my snakes in cage, and haven't noticed a differance yet. If you clean properly, water enough and handle and feed.....thats opening the cage say 7 times a week. So 1 out of 7 opening will condition them? No way. If they lived by those instincts they would die in the wild. Of course if you open the cage once per week, throw a mouse in and don't see your snake again for another week then you will have the problem you describe. But not if you handle fairly often, water properly and clean cage often. AND (this is important) USE TONGS! People should use tongs 100% if they fed in cage or not. Your hand should never have *anything* to do with the snake aside from handling.
My other problem with the whole snake out of cage logic is this....o.k. fed out of cage but then you must place the snake back in the cage. This is 100% the best time to get bitten during these out of cage sessions. I can honestly say I have yet to be bitten feeding in cage. But got bitten more than once while moving my snakes from feeding tub to enclosure. This bothered me and is why I am interested in this topic.
Also....my thoughts are since you are taking out of cage, your snake isn't really avoiding the "hand is food thing" i believe it is just getting more used to handling because you take it out to fed it which along with preventing the snake from swallowing substrate is a good reason to fed out of cage, but in my humble opinion being afriad your snake will develop a hand biting habit isn't based on fact. And many people have found the reverse is true. It can happen and does happen, but not nearly enough to claim that feeding in cage is a big no-no. If it is such a problem then the countless people I have been talking to are either lying, and they are in fact getting bitten or they are nuts.
I just don't like accepting things that are so low in factual testing or even statistics. I am actually thinking about writing a paper or article on this by compiling thousands of peoples data. I guess after I find the best questions to ask people, and how to break the data down maybe you will be right. Either way I want to find out the truth in this matter based on solid statistics or facts
I just wanted to share my thoughts.

BTW I am offering my opinion to share my thoughts, not challange anyone.
BMM