I agree...if one has piped, you can cut the others. One year I had a carpet clutch where all but one egg was dimpled....I even had eggs that were half 'deflated' and would have sworn that they werent good....well in the end all but one egg hatched...the one that didnt hatch was the one large plump egg. When all the other eggs had hatched, and this one hadnt, I slit the egg and noticed a fully developed hatchling, but he wasnt moving So I pulled him out and he didnt make it. For some reason he did not pip himself and was unable to exit the egg...I feel if I would have slit the egg he would have made it....

....so I guess from my previous experience...help the lil bugger out!

And Congrats on the clutch!