Like Funky said, the main thing is to start them all at the same time so they will hatch at the same time. You don’t want to deal with a staggered hatch unless you have no choice or are set up to handle it.
There is no perfect answer to your question. All eggs are not created equal. Some have more porosity than others, some have thicker whites than others. They can be different sizes. There are a lot of differences in different eggs. Some do better if they are stored a day or two, some are fine to go straight in. The longer they are stored makes a difference, it’s good for some, not so good for others.
I don’t do quail, just chickens and rarely turkeys. There may be some specialty things with quail I’m not aware of, but in general you want to store the eggs in 55 degree Fahrenheit temps and high humidity. I don’t have any place like that so I store them at room temperature in the turner in a spare bedroom. The longer you store them the less likely they are to hatch and the further from ideal conditions you have them the faster they go bad. Even with my less than ideal conditions my eggs easily last a full week. I don’t go beyond that because I have enough by then. Under better temperature and humidity conditions two weeks is not unreasonable. Pointy side down and turning them aren’t tremendously important right at the start but the longer they are stored the more important they become. Do the best you can with pointy side down.
When I get enough I start them, either under a broody hen or in the incubator. I generally number mine in the order they are laid, just so I can identify different eggs in the incubator. I try to pay attention and have not noticed any consistent pattern of which eggs hatch depending on how long they have been stored. Some will be a week old, some will have been laid that day.