I don't know anyone from Critter Barn, but I have noticed that people with general snake experience will make broad generalizations that simply don't apply to BPs (or any specific snake when you get down to it). What works for boas doesn't work for balls, etc., not that I've met anyone that recommends feeding any animal 40% of their body weight. This is one of the reasons I believe new owners get such bad information from chain pet stores - the training is not species-specific even when the employees want to give good information.