For me I never ever help a chick out of a shell, but that is because I want strong healthy birds.
There are breeds that hatch easily like your Bantam Orpingtons, but Moderns aren't one of them.
I have found that I need to feed a 20% protien feed with animal protien in it. I also give them some type of supplement to help with fertility, like ADE or Wheat Germ Oil.
Precise incubator temperature and Humidity is critical as well as turning the eggs before setting.
It is hot down here in the spring so while I save eggs before setting I make sure that the eggs don't get above 65 till I set them.
Bob