I don't know anything about genetics...I know with our Black and White stallion was bred to 4 different sorrel mares ( rotated to breed 3 a year) over a course of 5 years. He would produce 3 sorrel babies one year and 3 black and white babies the next year. It rotated perfectly , every other year was black and white. 2 years ago though he produced a white baby. Wierd!
I don't know about Medicine hat paints much. There is a guy here that used to breed paints and he had a few on his farm. They are lovely!!
Carrie D Stover
Rowdy by nature....Cowgirl by heart