Well I would guess and say misting them on day 10 is inaccurate. I would also say that waiting a few days from them to set even though they are intact, is incorrect.. The ones that you have right now, I would lay them down turn them 3 times a day. By you NOT turning them, your allowing them to stick to the side of the shell and they will never make it... When you turn them, understand it does not matter what time, So if your schedule is every 8 hours erase that from you mind. As long as there is at least a 4 hours separation between each turning, you'll be OK. My schedule was 8:30 in the morning, 6:30 at night and then again at midnight. You see adults ducks do not have a watch so they don't sit there and go "hum, it's been 8 hours time to turn".
As far as misting, well I do NOT mist, I have a sponge that I use, I have it soaking in water, once I have turned all my eggs, then I touch each egg with the sponge until the water runs down the eggs. you have to kind of think like a duck. When the mommy duck sits on eggs, she will bury the eggs, she does this for two reasons. To keep the eggs safe and warm. Safe so that preditors don't eat them.
Now once she is off the eggs what is it that she does? Goes for a dip. YUP. goes swimming, once she's done swimming, shell get back on her eggs and guess what, she's still wet, this is how she sponges or mists her eggs. Your job is to try and duplicate what a mommy duck does. Hope some of this makes since..
That was my original thinking too but started second guessing myself when none of the other eggs formed and then the one that did, didn't make it. I kept a small travel sized spray bottle inside the incubator and would mist after I turned. Maybe I will try the sponge method you use. I would turn the eggs around 7:30am, 6pm and 11:30pm. Thanks again for your help. Will keep you posted on this batch