Josie,
Personally.. I think you are doing the right thing. Peel a bit, stop if you see blood and wait.
I don't have much experience either, but in my last batch, one little guy had pipped the aircell, but not the egg. I heard her cheeping and scratching. 12hrs later she was dead.. I am still heartsick knowing I could have saved her if I had pipped the egg myself. I pulled her out of the egg, and she was perfect, but was breech (wonky aircell was down the side of the egg, and that's where she was trying to make a her hole.)
Good luck for you and your little ones.
Meghan