Hint: If you want to test the egg, try to spin it on the countertop. It will spin really fast if it's done. To see the difference, spin a raw egg and see what happens.
The reason that the egg is not quite oval is because I tend to use older eggs to make them hard boiled. That is also the reason for the graying around the yolk.
These are perfect for Deviled Eggs! I'll add the recipe later...
Let me know how this works for you.