Wow. You allow twenty stings per visit d.......... while I was twenty feet away and decided to requeen........
may bee calculation error if you suppose that every hive give me 20 stings.
30 years ago I had German Black mongrells. They were bad and every hive gove more stings than I can calculate.
That bad hives are rare, but almost every year I have a bad ass.
I requeen every year my queens. So I am quite far in spring when workers of new queen shows their style. I have spare queens to change bad asses but it takes a half summer that I get rid off stinging those workers.
I keep my new queens in 3 frame mating nucs quite long to see their sensitiveness to diseases, laying capacity and will to sting.
it is quite a job to eliminate defensive genes from genepool. They come soon back without continuous selection.
And don't say anything beautifull about "ferals". Huh. Unselected gansters.