Just remember if you incubate in cartons, you need to elevate one side so that the tilt, changing sides at least three times a day. Most people use a piece of wood under one side and just move it to the other.
People incubate both ways. So whatever works for you, do it. Many of the styro bators have an automatic turner you can purchase so you don't have to hand turn, but these turners need to be taken out at lockdown therefore most people lay their eggs down to hatch, but there are some that will...