The tangerine color variation in hondos isn't a "normal" recessive trait... this question comes up once in a while, and it seems that a tangerine x tricolor breeding actually tends to produce mostly tangerines. As far as I know, what's going on in terms of genes isn't fully understood. Nor is the ontogenetic color change that black milks go through... they start out as red/black/white or red/black/yellow tricolors, and usually turn black within 2 years. Most lose the white/yellow bands first, some lose the red first... hopefully, once black milks become more popular, breeders will start experimenting and trying to figure out why.
Here's my female black milk, she's a few weeks old in the first pic, a yearling in the second.

