Sergey. I repeat:
...And I don't, which is why I asked for a drone brood report. I do not care how many mites are dying, I care how many mites are being born.
Note the drone BROOD report, how many mites are in the capped drone BROOD.
I believe it was Whaler that found alot in the drone brood, but not dropping? Please, humor me.
Whaler - try striking the drone brood every 14 days, record your findings.