Re: quick/dirty brood frame manipulation to cut down Varroa??
I doubt you could ever eliminate 100% of mites. Sort of like trying to eliminate all bacteria from your home. Even if you could get rid of every single mite, the bees and drones will just bring new ones in from elsewhere.
Some of these suggestions seem rather complicated to me. Why not simply use a drone frame and cull drone pupae periodically, and supplement that with a few well timed sugar dustings?
The little bee returns with evening's gloom,
To join her comrades in the braided hive... -Tennyson