I use a sportsman. I just run the humidity around 40 during the week. On Thursday, I drop the eggs from the bottom tray down to the hatching area, and candle them. If they need extra moisture, I will mist them with a spray bottle a couple times during the day. On Saturday, a day before hatch day, I will bump up the whole humidity of the whole incubator to 60%. I just keep an eye on the air cells as they progress by candling maybe once a week. I try to get them to dry out evenly, but silkie eggs have a larger surface to mass ratio, meaning they dry out faster than turkey eggs. I find I need to mist the silkie eggs some to keep them on track with the larger fowl eggs and the turkey eggs. They do seem to have a wide range of forgiveness on the air cell thing thoug... lol. Good thing, or I wouldn't hatch much. Because of my split hatches and messing with humidity and spraying eggs and what not, I am more generous to help out stuck chicks if they get a good zip going. If they don't pip, I don't help. If they just pip and no more, they are probably duds. If they pip and zip and get stuck, I will help them.