Well... we finally finished with one live chick out of thirteen set eggs
As we had taken over this hatch from a girl who had set them in the auto-turn upside down,turned the incubator off for a couple of hours and then asked us to finish them off, that would been about day 16.
We basically put them into lockdown then.
On day 22 one egg had pipped at the small end and the chick didn't seem to have the room to swing his head to start zipping, we left him for most of the day before using the trusty leatherman carefully peeled the shell from the membrane around the small end half and left him for the night.
Come morning he was still cheeping loudly but hadn't made any progress with cutting out of the membrane, none of the other eggs seemed to be doing much at all.
I reneged and cut the remaining membrane away from the peeping chick and started to check the remaining eggs of which 6 had developed to around full term but with a lot of clear liquid still in the shell and the yolk still unobsorbed, one of these eggs still had a faint beat to it but died soon after.
next time we'll run the incubator right from the start ond be in control of the situation more should produce some better results.