OT, the way the "trickling" math works for me amounts to about 1/5th to 1/6th of an ounce of sugar per hive at a time when the bees are already broodless. Seems like the danger of any larvae being killed later would be extremely minor if at all. Be that as it may, I would like to hear more about your vaporization methods and experiences.Nice video.
The great thing about vaporising rather than dribbling, is that to dribble OA it has to be mixed with sugar water, which inevitably means some of it will be eaten, or possibly stored and fed to larvae later, which does damage. This is why dribbling is only recommended one time, or suppression of brood production can occur.
But vapour crystalizes out in a fine mite killing layer over everything in the hive, with much less getting in the food supply, so vaporising can be done several times if you want, or overdosed, with little or no effect.