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Wouldn't that depend on which parent was the RIR and which was the Delaware?
As I understand it, you only get the red sex link when the roo is red and hen is white. If the roo is white and the hen is red the pullet chicks should, theoretically, grow up to be white (or Columbian-ish in this case) and the cockerels should, in theory, be some other combination of red & Columbian. The pullet chicks would most likely be yellow while the cockerel chicks would be more strawberry blond-ish.