Are mechanical mothers a ploy then? Do you anything differently if you pull at day 10 or day 30?
Pulling the sac early doesn't mean a few days....lol...I'm talking pulling it at like day 10, or even sooner.
The issue is that if one single egg goes bad, it's deterioration will effect and kill all the ones around it, then as those go bad, it kills all those around them....and you can extrapolate how just one bad egg, given time, can destroy the entire sac.....sooner you pull, the sooner you stop a bad egg from going nuclear on the rest of the sac....and because an egg can go bad at any time, the only way we can eliminate a bad egg is when the eggs are exposed to us visually by being spread out in an incubator.