Maybe I'm a bit late to be saying this, but to me around 5 mites falling per day is no reason to get worried yet. That sounds like the level that could build to quite high levels by autumn in a prosperous colony, but in a less prosperous one may still be lowish at the end of the year. Around 10 times that number is when treatment would be advised, so there doesn't seem to be much point disruption honey production just yet.
What I would have done in a honey producing colony is:
- keep monitoring (you can have spells of atypical levels of mite fall, need to see it over a longer period)
- considered drone trapping to hold the numbers in check if they climb much higher
Drone trapping works best if the colony doesn't have much drone comb already, then you insert a shallow frame each side of the brood nest. Cut away the drone comb below the frame once it is sealed and you have most of the mites. If there is as much drone brood elsewhere as you cut away, you got half the mites and better do it again. If that was most of the drone brood in the colony, you got most of the mites.
best wishes
Gavin