My hobby as beekeeping crystallisizes as volume of honey.
I have had 6 races: feral, Caucasian, Buckfast, Elgon, Italian, Carnolian.
Just now I have 3 Italian, Elqon, Buckfast.
Strains are more important than races. Most unwanted feature is swarming.
What ever they are, they make honey, if they have good pastures.
What I do not want any more: feral, Carniola, Caucasian.
And what ever it is, not daughters from swarmed hives!
One stain may prodece 30% more honey, but different pastures produce normally 2-3 fold and even 5-fold,
I manage with races and strains. I bye a new queens. Pasture choices are in my hands. Pastures are difficult to know, do they give honey as much as I want. My want is over 200 lbs per hive.
Big hives, good pastures, calm no swarms! --> Over production