Wobbly head and kinked tail are the only two things I can think of right now. Both are tied to a certain morph.

Then you've got the nervious owner syndrome. When a normal BP goes off feeding, the owner gets a little upset. When the owner of a $1000+ snake sees their snake go off feeding, they tend to get really nervous, really quickly. But that's a warm blooded mammal issue and not a snake issue.

Jim Smith