Re: My second graft . . .
I hope to be following you soon in this queen rearing practice. I am a ways behind you though. I am still waiting for my first hive to even build up to a population that can provide a huge number of nurse bees. Also due to my location I cannot keep enough hives here to produce many queens. I would have to have homes for them before I even tried to produce them. I woudl not even be able to keep them in breeding nucs for any real length of time.
Congrats on the improved results though. that is what it is about. With practice comes skill.
Significant Minority vs Insignificant Majority, 20% of causes produce 80% of the effects.