if the eggs candled with good veins showing, incubate all of them, you have nothing to lose for trying. my very first clutch of eggs dried so much that the top touch the bottom and most of the hatchlings made it. I now use press n seal and it works great.
one of the biggest mistakes made is too much of a change. A snake egg will adapt some to it's enviroment. a big change, example low to high humidity can kill an egg. this I read from the ball pythons of the world book by VPI.
corey woods had a post reply that stated be careful adding too much water to the egg box, you're better off lightly misting the eggs with water and bring the humidity back slowly.
good luck with that clutch and keep us posted, don