They will be like the parents and will lay like the did. They will not lay as much as a sex link cross. You could get one of the parent stock and breed back using the correct color to make a sexlink and make for from them. You could repeat the cycle for years making your own line of sex links if you like the results.
You could use Barred Rock for one of the parents and also keep some Cornish hens and make a line of meat crosses too.
Barnyard mixes are usually quite healthy due to the injection of diverse genes. They can be good layers, like the parentage.
Thank you for the info! Ill have to look into sex links more because I do have a barred rock hen and a RIR hen so maybe I could borrow my neighbors roo if its possible to get sex link chicks. With borrowing their roo, our flocks some times free range in areas very close to each other and I think that the coops are close enough that anything airbore would have already transmitted, would it be safe to let him come visit or am I just asking for problems?