I breed and show Californians, and while I do have does and bucks with and without smut, I haven't really seen a difference in parenting.
On a side note, smut doesn't usually seem to be hereditary. But in your case, if you're just eating them for meat and not selling the pelt, smut doesn't matter. HOWEVER, if you are planning on selling any of the babies to people who want to show, sell pelts, etc... smut will matter. Not on your rabbits, but what you sell people. Also, smut IS permissible (in the show ring) on the eyebrows and the dewlap (of a doe).
If you go to my website at:
www.stoneycreekrabbitry.weebly.com you can see on the "DOES" page, that two of them have smut on their eyebrows. I also have one doe with smut on her dewlap.
The color of the rabbits change too. In the summer they almost have gray points (if it's very hot) and in the winter get very dark.
One thing's for sure, their coloring is definitely interesting to say the least!