About to set my first batch!

[Foghorn]

I am pretty excited about hatching my first babies.
I have a couple questions though. What if you can't tell what is the right end of the egg to set down? Would guessing wrong be harmful to the chick?
Also, should I discount the egg shown with the peck mark as a "no go".?
By the way, they are Silver-Laced Wyandottes and Americaunas!

 

[silkiechicken]

Before I set I candle all the eggs and check for cracks, that crack is a mark of a fry pan egg. It is a great entry site of lovely bacteria... not what you want.

As for setting them, I like putting them on their sides, but if you have a turner that requires them to be upright, put the pointy side down, with the side with the tiny air cell up if the egg is a perfect oval.

 

[Foghorn]

All set to go. They went in yesterday at 4:30. Now, the WAIT!!!!.......