I just recently did a unplanned test on this . I saved eggs after the rooster was removed . Candled eggs and fertility dropped dramatically after the first week . Since I removed the rooster mid week I had day 4 through day 10 . 19 infertile and 13 fertile . I will not waste 8 weeks in hatching season . I often use the same hens in different projects . I save eggs for 1 week after removing a rooster then add the new rooster . Wait a week and start saving eggs . No problems encountered . John has said the daddy is the rooster that bred her the day before . Stored semen in a hen is used as last in first out .
So any residue dies due to being old as long as new breedings take place . Run your own test and make informed decisions . With my method I consider the odds like winning the lottery . Yes it can happen .
That's great if it works for you. If the bold is true, and I assume it is, then I can see the advantages in not waiting it out. I only expressed what I have found, that hens can store semen a long time. How viable it is over time, well that's the question, and may have much to do with individual birds.