Hey there! I did end up laying them all on their side. Of the 5 total, one had died several days before lockdown, so I just took it out. But the remaining 4 with saddled air sacs hatched out beautifully on their sides. I was just sure to place the largest end of the air sac facing up.
I did end up having to minimally assist one of them. They had all internally pipped at the end of the 20th day, and three had externally pipped, zipped, and hatched by the begging of day 21.
The 4th egg had been internally pipped for about 20 hours, and upon candling it, I could see that it’s beak was frantically pecking, but unable to actually tap the egg. He also appeared to be breathing much heavier than the others had been by this point. I suspect that he was slightly malpositioned r/t the saddle. So I just made a tiny breathing hole using a steak knife to saw a little score, and then poked the score with a needle. My logic was to give him some oxygen, so that he could find the strength to reposition. I made the hole as close to his beak as possible.
He ended up hatching on the night of the 21st day. It took him longer to get on his feet than the others, as he was exauhsted, but I am glad that I enterveined, as he is thriving well now.
I don’t think that I would have tried to attempt more to help him. As veins were visable right up until the hatch.
One trick that I found to be priceless, was to heat some water on the stove, poor it in a cold pan (for steam) and then I took that pan over when I opened the incubator, while also draping a blanket entirely over myself, the steamy pan, and the incubator. This made the air under the blanket even more humid and warm than was inside the incubator, which allowed me to assist (and candle) more freely and timely. And actually boosted the humidity in the bator for a while. Personally, I think that The opportunity to keep closer tabs on them, being more high risk chicks, was invaluable to my sanity on hatch day, and this was a good way to do it.