I was reading about rat genetics and came across the dwarf rats, which apparently are about 1/3 the size of a regular rat. Has anyone tried breeding these as feeders? Wouldn't they be about the perfect size for a ball python, which would eliminate the problem of the rats "out growing" the snakes... Do they still grow at the same rate as regular rats, or is it slowed down to the point where it would take a dwarf rat just as long as a regular rat to reach its particular adult size?