Best of luck to you both!! I'm rooting for those babies. 

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I agree. It's been long enough that any blood vessel issues should have cleared up. What's the status with the rest of your eggs? Be sure you read the article by Sally Sunshine re: assisted hatching before proceeding. I wish you the best. Proceed slowly, and stop at any sign of bleeding. He may be glued or shrink wrapped, and if so, you'll have to assist him.
I just looked back at your last post and see that the head is all the way out? That changes things a lot. Please take your pics and situation over to the "She said he said" thread. There are a lot of experienced hatchers there who can advise you.