What is the longest time you have waited for a late hatch before giving up??How long is long enough? I don't want to go do eggtopsy and kill chicks that are alive but yesterday when the incubator quit I shuffled two incubators of eggs together to make room for the ones in incu 3 to go in incu 2 so I hate to have non viable eggs taking up space that my viable eggs need. I don't want to give up too early but my gut tells me there are no more going to hatch from the batch I am waiting on. What would YOU do???