I'm on the other end of the state from you, but blacks and BWF usually bring right at the top here. If the BWF has loud markings like spots on the side or almost like it has a belt, a lot of times it will get docked, even if they are equal in quality and size. One example is a good tan and white Simmental cow I used to have would throw some calves out of my Angus bull that looked like a HerefordXAngus BWF, and they always brought good, but some of her calves would come out black and white marked like her, and they would get docked, even though they were the same quality as the other calves she had had. It's frustrating, but that's the way it is. At least that's been my experience. CharolaisX and LimoX calves bring good here too, but all things being equal I'd say black calves tend to bring the highest on average.