We have four adult/subadult het caramels, and one nearly mature caramel male-not a kink in any one of them. they'll be breeding shortly.
I think that kinking in caramels is CLEARLY genetic. As such, any kinking (however slight) is a marker for the gene or genes that produce kinking, and IMO SHOULD disqualify that animal for breeding. I know it's painful, but if you want to be a serious breeder then you have to think about what is best for the future of the breed. Would you breed a German Shepard with hip dysplasia?