Chick #3: Removed for examination, due to the hatching situation, and placed in the brooder where it can be in a dark, quiet place rather than back in the incubator. Still lethargic, but improving steadily and dry. Just not moving around enough to fluff up.
Egg #2 has hatched. Still two other eggs pipped, no visible pip on the remaining three.
Correction: #9 has pipped. That leaves only #3 and #12 that have not.
First three chicks are in the brooder doing well. Fourth chick is going egg to egg in the incubator, trilling to them and pecking them.
Edit:
I decided on a hunch to check #3, since the other largest eggs all failed, barring #6 which was upside down. On inspection, I determined the chick was dead, and opened it up. Fully formed chick, completely un-absorbed yolk sack, probably died yesterday or the day before. The air pocket on that egg was almost completely on one side of the egg. I have to wonder if that influenced the death.
New tally:
Out of eight eggs:
4 hatched.
4 pipped.
Hatch is done.
#7 hatched a little black chick.
#12 a blonde with what looks like a pea comb.
#9 another blond, with an odd... fleshy spike? on its chin. I'll probably be posting photos of that to try and figure out what it is.
All chicks have feathered legs, all appear to be healthy. I'll finish posting photos once they fluff up a little - I can't really tell which chick is which, except for #12, and the black chicks, since each has a different amount of white markings!
A 66% hatch rate. Not very good at all. I think I'll have to look into getting automatic turners and a fan or two to circulate air, but clearly some of the problems I've been having with hatching are on me, rather than problems with shipping.
End result; I need to work on improving my incubation techniques and equipment. Hatching shipped eggs drastically reduces the hatch rate, but it is not solely responsible for the poor hatch rates I've been having, going by a 66% hatch rate using local barnyard mix eggs.