This site talks about storing eggs for incubation. I personally would not store them waiting on a broody. You could wind up waiting forever. Once you get a broody, collect fertile eggs for a few days, then put them under her. Making her wait for a week on fake eggs won't hurt her.
Texas A&M Incubation site
http://gallus.tamu.edu/library/extpublications/b6092.pdf
A Barred Rock rooster will give all black and white barred offspring the first generation, although there is a great chance (I'd say great probability) that some other colors will bleed through, especially around the neck. The Ameraucana hens witht he barred rock could give you Easter Eggers that might lay blue or green eggs but they will be barred.
An Ameraucana rooster could give you many different offspring, depending on his genetic make-up. Any of his offspring could be Easter Eggers, especially if they have a pea comb, but this is not guaranteed.
Texas A&M Incubation site
http://gallus.tamu.edu/library/extpublications/b6092.pdf
A Barred Rock rooster will give all black and white barred offspring the first generation, although there is a great chance (I'd say great probability) that some other colors will bleed through, especially around the neck. The Ameraucana hens witht he barred rock could give you Easter Eggers that might lay blue or green eggs but they will be barred.
An Ameraucana rooster could give you many different offspring, depending on his genetic make-up. Any of his offspring could be Easter Eggers, especially if they have a pea comb, but this is not guaranteed.