good evidence never to help a chick out of the shell. If a chick can't hatch by itself then it's chances of suvival are very slim.
I know it can be done but for the 1% of cases where a chick survives it isn't worth it for the other 99%.
Once you have dealt with a sick chick crying for a week, you will think twice about helping a chick that was not meant to make it.
But in order to give it the best chances it can be fed scrambled egg. Or the boiled yolk mixed with water in a paste.
You can aslo feed it bakers yeast in some lukewarm water - that has lots of vitamins.
Either it will straighten out its feet o rit won't and if it doesn't then it won't make it. I've never succeedesd with a shoe, no professional breeder would use a shoe.
It's not a proven or (imo recommended) aproach, it's just something that is suggested online because nobody wants to be realistic and say don't help chicks out the shell.
When I first started I would think helping them out was the humane thing to do. It's not - it's interfereing with nature's natural process and you cannot cheat the process, either the chick is strong enough or it is too weak.
I have tried and it is not worth trying so please people. Raise the healthiest chicks.
Unfortunately that means not raising the weak ones
my incubator has a humidity issue. I have to help the chicks hatch and they grow up fine. I wish I had a better incubator.