Well I can't wait to see when the new hair will grow if there will be some changes.You probably won't see changes for a while. The reddish hair has to grow out and new coat grow back in. Have you tried using Chris Christensen's black on black shampoo? That really helps my bi-black when she starts getting a little "red" due to the sun.
I have never tried this shampoo, I read about it on the internet and sound interesting! Thanks for the idea

Cara the dad of my girl is sable too.