Well, this morning my two zippers were still half-hatched. One had managed to get her head out, but not her bottom, and then immediately got her back and head glued to the towel lining the bottom of the bator.
The other guy was still in his shell - and was pretty much super glued in there. Humidity was around 80% all night.
Used a syringe to moisten the chick glued to the floor, just keep putting water over her. While she was softening/soaking I took the other guy out and used the syringe again to moisten the membrane around the egg, putting a little inside the egg (away from beak) and wrapped him in a sopping wet papertowel and back in the bator. It was slow slow slow work getting them unglued. Once I managed to peel the first girl off the floor, I ran her little body under warm water until she kicked off her shell. She had lots of goo binding her legs, so I continued to rinse until most of it was off, and I cut a bit of the last lump off. Then back in the bator.
The second guy was much harder. Lots of warm water slowly trickled over and over again. Test a membrane, peel a little back, etc. When I finally got him to kick out of his shell, I found his wing had been glued to his head (he also had a lot of goo in the bottom of his shell). Getting his wing unglued was the hardest part, because I didn't want to get water up his nose, and I didn't want to pull his eyelid off! Slow slow slow slow. Finally came free and after rinsing off all the gook, back in the bator he went. They are both very active now, running round the bator and peeping to wake the dead.
Neither ever appeared weak - just very very stuck!
So there was my first assist story. I hope I never have to do it again!!!