Even normals can have flaws. I had an extremely dark male normal that had been abused. His tail looked like someone came at him with a meat tenderizer. It was so bad I had to give him a bath so he could poop. He died from a stroke because of the abuse but he was an amazing snake.
Carmels are a morph I would stay away from even though they have varing degrees of kinking. I have heard that a good portion kink behind the head and in the neck.

Look at the family tree of the snake before you buy, the more inbreeding the more gentic problems. Most morphs were created by breeding the orginal with its offspring but if a breeder is keeping the pool small and shallow don't buy.

Don't buy from BHB. I have seen and heard way to many problems with this company. They are like the Walmart of BP breeders and I personally would never buy from them. Ralph Davis, LLLReptile, and Mike Wilbanks/Bob Clark are all very good breeders. Ralph only does phone orders which shows he really does care about his animals. Don't Buy from Petco or Petsmart they get their stock from Rainbow Exotics and other Bad Breeders that often have bad breeding and caring conditions and practices.