I'm not so sure that the tendency to kink is due to inbreeding with caramels. RDR once posted that many of the wild bred caramel founders where kinked. Seems like if the tendency wasn't part of the mutation it could have been outbred by now. Perhaps by studying when caramels don't kink we can find some change in food or environment to overcome this tendency.
The same seems to be the case with the head wobbling and rolling seen in many but reportedly not all spiders. Spiders have been very outbred yet it still shows up often (some even claim all have at least a little of it but that is still being argued).
Also some but not all homozygous cinnamon and black pastel have odd noses and/or kinks. It seems that along with what we like we sometimes get things we don't with these mutations. But since each of these problems isn’t always seen (or at least not always bad) there is some hope for figuring out how to work around them.