Some reduce the temperature in the hatcher because ideal temperatures have been found to be around 1F lower than the incubator.
It's a small change, and I wouldn't make it unless you could be sure your temp adj. mechanism was up to the task.
With digital control it's easy.
It's worth remembering that there are those who incubate difficult, rare and expensive eggs, often one at a time. For these people the difference between 85% hatch and 95% can mean a significant saving of money, time, and rare eggs.
For the rest of us .... well we can all learn from the experts using weight and density loss techniques, but they aren't essential.
It's a small change, and I wouldn't make it unless you could be sure your temp adj. mechanism was up to the task.
With digital control it's easy.
It's worth remembering that there are those who incubate difficult, rare and expensive eggs, often one at a time. For these people the difference between 85% hatch and 95% can mean a significant saving of money, time, and rare eggs.
For the rest of us .... well we can all learn from the experts using weight and density loss techniques, but they aren't essential.