Right, right. I always mix the two up, thanks. Yeah the Caramels.
By only selectively breeding the animals with the least wobble, whether it is the gene itself or not, at least in time it may prove not to be random, and it wouldnt much matter if the only ones you bred/sold had little wobble. It would be artificial selection, maybe not culling the ones with high wobble, but definitely not letting them breed.