I would just leave them be and let them pip on their own.
I incubate at the same temp and I didn't get pips until day 60-65. There have been a few members here who have had to wait until day 70 or later.
No worries, they are just making you wait
As for the boob egg, there is a chance the baby won't make it, but cutting the eggs vs. not cutting isn't going to matter too much :/
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