Shaggy,
My best recommendation is to visit each PetSmart and find out who cares for the reptiles. At my store I'm the Pet Care Lead (quasi Pet Care Assistant Manager) and oversee all the sections, with 1 of my associates in charge of each section. Some stores it can be any and all associates in charge of all sections and thus consistency can be lacking. I'd also ask to see the feed charts. Policy is to have them on all snakes, stating when they arrived and what species/morph they are and are to be given to the Pet Parent (=customer) when a snake is sold. The vendors we have supplying my store with recent corns is great about labeling what exactly the corns are, be they the "assorted corns" or the "fancy corns". HOWEVER, a recent shipment that had an assorted corn labeled as a black corn (anerythristic) is actually a ghost (hypomelanistic anerythristic).
Assorted corns =
- albino, anerythritic (black corn), and normal
Fancy corns =
- motley (albino, snow, or normal), snow, striped (albino or snow), caramel, and diffused (labeled bloodred)
These are what I've seen in my area. I've also seen normal corns, under assorted, come in as hypos too.