I did see it and it was almost as if it just burst out. The egg didn't immediately deflate. At first, in my experience, it appears as if layers of the egg casing start to sluff away and it becomes a bit more translucent. Then it just all of a sudden burst and the little cuttle came out. I am trying to recall but I tried to look at the egg sack and think that the burst occurred near the attach point. Not right on it but about 1/3 of the way from the attach point to the opposite part of the egg. I hope you get to see it as well. If you do, please post your experience.