Yes the problem is, if I feed in a separate enclosure and I remove the animal from the cage, then the animal is in a state of "what is happening". The animal does not know it's handling time until the owner gets to the couch or walks around for awhile...in this little time window, you have major room for error; however, if I feed in the cage, then out of the cage automatically means no food.
I hear you on large collections, I used your "feed and clean" method at the store too simply due to the sheer volume of animals. One reason why I am keeping my collection under 30 specimens...I like the idea of being to instill behavioral cues in my animals