Hello
according to how thay count in the US, GSD has 0% Wolfblood.
Mixing Wolf = 100% Wolfblood whit GSD = 0% gives a Hybride (F1)on 50% Wolfblood.
If mixing this Hybrid whit a GSD you have 50% + 0% / 2 = 25% Wolfblood on generation 2 (F2).
If DEFRA wonts to count like thay do in the US generaton 5 (F5) in the year 1989 when FCI allowed the breed international was only 1,56% Wolfblood.
Maby this Mathematical system can be used by DEFRA to
Best Regards / Mikael