Jackie, if you find the eggs right away they are pretty easy to pull apart. I check every morning and most of the time separating them is not an issue. However, if they are pretty stuck I just leave them together. If an egg dies it may "sweat" and make it easier to pull apart. If not, I just leave them. At the end of the incubation period, around day 53, the eggs become very easy to pull apart. If I have a dead egg I separate it then.
This..Be carefull when pulling a funky egg from the rest, the bacteria that is eating the egg makes the shell soft and very easy to tear..and trust me thats a mess in the egg box you really want to avoid.
When you've got 10,000 people trying to do the same thing, why would you want to be number 10,001? ~ Mark Cuban