I don't really rush but if I can see the pencil eraser and spider web it's an efficient way of using incubator space. If I can't see anything on day five I wait til day 9 or so just to be sure. If I get busy sometimes candling gets put off but I don't toss anything if I don't see development on...
I have noticed late hatchers tend to have really bad vigor and survivability issues. I don't do anything different with them than I would the others but they often have issues coming out of the egg.
This time of year there are alot of cheap eggs for sale or offered for free sometimes. In the US breeding season is trailing off, most of my males in WI dropped their tails and are no longer interested. The hens are still laying eggs but the fertility is petering out. We're one of the last to...