warm yeah, the rating goes hand in hand with the six traits, Mv, Int, Hrt, Scp, Spd, Str. So if your mare is weak in Int but strong in Hrt, you need a stud strong in Int and he can be weak in Hrt.
Now, sometimes radom factor(RF) is just mean and hits you with a stick and you get a foal with a terrible rating from good parents. Such is life lol |