Seagulls dam, Eve was broken coated so my theory, for what it's worth, is that the coat pattern of whatever lurcher type (all over hairyness), and the coat texture of the saluki influence (silkiness) combined to produce differing degrees of hairyness down the line. An old hunting pal of mine from Belfast had a bitch in the 70's that everyone called the afghan bitch but there was no afghan in her. She was basically a cross between a deerhound lurcher and a saluki, (we know who bred her) and looked very much like an afghan with better muscle tone.