I use Bolio & Tombstone in my dogs along with others.
I walk a different path.
How a dog is bred only holds weight to the ones I personally seen. People will question & argue about breeding's to the end of time.
If you like the dogs then breed them. How there bred won't matter 10 generation later because they will be something else with Bolio & Tombstone in them.
These have Bolio & Tombstone in them but not Bolio & Tombstone dogs.

Line bred Sister Bang Bang who's 1/4 Bolio,1/4 Tombstone,1/4 Sorrells & 1/4 Hicks.
Now just Hicks dogs
http://www.thepitbullbible.com/forum...p?dog_id=57857