Both, but I believe the closest AI bull currently is within 2 generations. The home raised bulls out of home raised bulls have the prefix of the herds where I purchased them. I am still using AI, but most of the bulls are out of the mainstream - older AI bulls, previous herd sires for another breeder or previous bulls that I raised or purchased. Hopefully, 10-15 years from now, most of the bulls in the pedigrees of the young cattle will have my prefix. If not, I will not have made the progress that I am hoping for. My primary forage is fescue and I don't creep feed my registered calves. I stopped 10+ years ago. (I will use them for my commercial calves if I can make a profit and I have extra resources. Unfortunately, that doesn't happen very often.)
Very few AI bulls are raised on fescue without creep, so my AI choices are limited. That doesn't make mine better, but I know they work for me and not the other way around. They should do the same for their owner - whether that is me or someone who purchased them from me.
Hopefully this new fescue test will help me select/avoid some AI and naturally breeding choices and speed up the process, but I think I will wait a couple of years to see how it is working in the commercial sector first.