Sounds like you've done your homework, and well, Lucky. I didn't start down this path without doing some of my own research and reflecting, and am well aware of the stigma and risks involved, but I'm far enough along now that I can let the results speak for themselves. My only regret is that I didn't start sooner.
Kentuckyguy, you're right, few will publicly admit to inbreeding, on purpose anyway, and that mindset is what allows recessive genes like curly calf syndrome to quietly spread until the gene is so pervasive that it can't be kept hidden. Just like dwarfism did a hundred years earlier. Somehow, the lesson wasn't learned that inbreeding will expose any flaws present and can be a good thing. Instead, what seems to have been the perception is that inbreeding caused dwarfs, a false assumption, which led to the stigma I mention. It was said earlier in this thread about heat in the kitchen, a true statement. I keep one or two bull calves back every year to use, and come breeding season I turn all the bulls out, best bull wins. I think the oldest bull is five, maybe six. If I have any doubts, hints, or suspicions about any bull, he goes to town, quickly. Most of the herd is registered and we send in dna samples to determine parentage on the calves we keep. We are getting close to where I think we need to import new blood and bred two cows AI this summer towards that goal, might do more next year. I'd have to go back to look, but thinking on it now it's been longer than eight years since we started down this path, probably closer to twelve. It was a long road to get here and there is still plenty of room for improvement, but I like the direction we're headed and haven't had any six legged calves yet, did have a red one a few years ago that surprised me though.