Close inbreeding and production of SW mares

While recently surfing the Web I came across this. Sometime ago David Dink wrote a reliable discourse debunking close inbreeding (3x3) success. The following are interesting thoroughly researched after thoughts that agree there are exceptions. Not light reading but interesting and thought provoking.

https://ddink55.wordpress.com/2016/06/02/you-learn-something-new-every-day/

https://ddink55.wordpress.com/2016/06/05/a-comment-upon-you-learn-something-new-every-day/

"…So the DI group sold for prices about 35% above average and produced results about 104% above average (an improvement of 0.69). The NDI group sold for prices about 45% above average and produced results about 71% above average (an improvement of 0.26).

So, yes, the DI group was definitely better than the NDI group, lending credence to the theory that inbred (3×3 or closer) dams make better producers than dams not inbred that closely.

At least among dams who were stakes winners. …

… Inbreeding works both ways, in other words, intensifying both the good and the bad.

But it does appear that foals out of stakes winners who are inbred 3×3 or closer do outperform their prices rather significantly. I would not have believed it if I had not done all the research and number crunching myself."

This is debunking inbreeding success how?

Doesn’t everyone know that inbreeding to ho-hum gives one ho-hum?
It isn’t the formula, it is the powerhouse put into the formula.

If there were a simple formula for success, Sheikh Mohammed would have won the Kentucky Derby by now.