FWIW Back in the day you didnt whant to inbred on Tonka!. quality disapeard quick,very game tho!!. light line breeding of off him produced the best dogs, like in the Tonka Red baron famely and the Nelis rom famely, Both of witch at least to me produced the better dogs that caried the Tonka blood . we and others fooled around with dogs bred like this
http://www.thepitbullbible.com/forum...p?dog_id=17247
http://www.thepitbullbible.com/forum...p?dog_id=27054
my whife owned this dog http://www.thepitbullbible.com/forum...php?dog_id=773 and i got to know her tru CH Ben and bred him to a daughter of Nelis rom who was 25% Tonka on her bottom side. a sister to this dog http://www.apbt.online-pedigrees.com...&dog_id=373987
http://www.thepitbullbible.com/forum...p?dog_id=27050
this dog http://www.apbt.online-pedigrees.com...&dog_id=412764 beat one hell of a Indian dog called BB kennels Ziggy http://www.thepitbullbible.com/forum...p?dog_id=27334 in a classic bout..