Liefalwepon, nearly every successful breeder I know has used linebreeding or inbreeding. The only time an outcross was used was when they felt it was necessary. I can't say how that translates to dogs that find hogs but there are issues that come up with bulldogs too tight bred.
Yup the same with the breeders that I have spoke with as well. Also Wayout have you noticed how some lines just stand up to inbreeding much better than others. I thought it was maybe because the dogs they started with were further but that is not always the case.
