I've never used a separate feeding enclosure for any of my kiddos. That opinion, at least for ball pythons, is old, and no longer considered a necessary precaution. I know that many of my collection would refuse to eat if they were disturbed prior to being offered food.
My recommendation would be to not even move your snake from its tank to feed it.
In fact, if you think about it - the risk for being bitten is greater when moving to a feeding tank, since they only time they get moved to that is for feeding, thus they associate that tank with feeding - and then you have to worry about whether they are still in feeding mode when you move them again.
Whereas, if you feed in their enclosure, you're going into the enclosure many other times besides feeding day, so they have no reason to associate your going into the enclosure for feeding time.