Hi Mike, Glad to hear that your eggs are hatching but sorry to hear that some are abit wobbly.
Make sure that the flooring has a good grip. I use an old piece of carpet and straw on top so that it keeps them warm and stops them getting splayed legs.
http://farmingfriends.com/litter-suitable-for-brooders/
It is very important to make sure that the flooring in the brooder gives the keets traction as a slippery floor can lead to splayed legs.
http://www.farmingfriends.com/splayed-legs-in-quail/
Another thing to watch out for with guinea fowl keets is pasting up which is when the droppings stick to the keets vent and block up the vent and if not spotted early enough can lead to death. http://www.farmingfriends.com/guinea-fowl-keets-pasting-up-2/
A disease to watch out for in guinea fowl keets is coccidiosis which can kill your keets. http://www.farmingfriends.com/coccidiosis-in-guinea-fowl/
I agree that guinea fowl do seem to find it hard to break out of their shell and I have had to help mine out at times. I always wait for the egg to pip but then if the keet hasn't got out after a number of hours then I will help.
All the books and research says that you shouldn't help chicks out of the shell and that opening the incubator can affect the rest of the eggs hatching. I have not had to help quail hatch as they managed to all hatch at the same time and relatively easily. I have however had to help many a guinea fowl and ducklings out of their shell and if I hadn't have helped them out of their shells then I would only have one duck and not 7!
From experience I have found that if a chick or keet has not hatched itself within a few hours then I have found that they often die in the shell as the heat in the incubator dries up the shell and membrane and makes it difficult for the chicks to hatch.
If you do decide to help the chick or keet out, remove the egg from the incubator quickly and cupping the egg in your hand to keep it warm, carefully start to pick off the shell from where the egg has pipped as this is where the chicks beak is.
I have always had to work quickly although you have to be very careful that the blood vessels in the shell don't bleed as this can kill the chick/ keet.
When I help a chick /keet out I try to pick the shell off the head part first and work my way down. I never take all the shell off as the chick / keet is attached to the shell at the base.
I usually take the top off and try to make sure that the chicks head, wings and body are free. It is important to make sure that the chick / keet can move about because once it goes back in the incubator the membrane and shell dry out and they can get stuck to the chick / keet. I then put the chick and attached shell back in the incubator and let the chick wriggle free in it's own time.
Sometimes the guinea fowl keets have made it and sometimes they have still died.
Another thing to consider is once you have opened the incubator the temperature and humidity will be affected and this could stop other chicks / keets from hatching.
I hope you find this information useful. Let me know how you get on.
Kind regards
Sara @ farmingfriends