Something is missing in the math or the details for me. Most likely the details.
Day 1 fraems are isolated from any further laying. any one day old egg is 21 days from emergence. 10 days until a queen is reintroduced 7 days above excluder plus 3 days queen is caged. If the queen begins to lay immediately it will be an additional 8 days until that brood is capped. total of 19 days from isolation to new brood being capped. Capped brood has been present in the box at all times.
Mainly I am not seeing how the set back for the mite is working. Is the reduced capped brood the hive enough to effect this set back? Or ?????