You can't say "do it this way" and have it work out for every case. I personally keep 9 ball pythons in a rack and feed them in the rack. For the ones that that eat anything anytime go ahead move them to a feeding tub. But for most of my ball pythons if you move them they wont eat.
As for getting bit, I have only got bitten by one ball and that was just stupidity on my part. The funny thing is the one that bit me was my worst feeder now he is my best feeder.