Good post LetMBee. The bond method works in accordance with evolutionary theory. So what cannot survive unaided dies. As per evolutionary theory there have been extinctions, and that's where the bond method can fail, as a method. As in my case, my losses were 100%. Which is quite in accordance with evolutionary theory and what has happened when two alien species encounter each other, historically, more species have become extinct than are currently alive. So it didn't advance my quest to produce a better bee at all. If a person gets some survivors though, he has a chance.
Even Solomon, after some years of doing the bond method, got wiped down at one time to only two hives. He could just as easily lost everything, like me. It happens.
Re the AFB thing, there is no evidence that bees are more resistant to it because infested hives have been burned. Those hives would have died anyway if they could not withstand the disease, as has been happening throughout the ages.
The real thing that got AFB kicked off was the beginning of widespread transportation of bees and equipment last century. AFB then became an epidemic both in my country, and parts of the US. Strong government policy has now brought the disease to small proportions in both countries. Solomon if you think your bees are resistant to it try infecting all your hives with it. The likelihood is that more than 1/2 of them will become symptomatic.
How do I know that? You would be amazed at the things I have seen, and the people I have met, during my work as an AFB inspector.
So hey just kidding don't REALLY do that LOL.