Yes. I agree. My fourteen week old strain of HRIR eat the same amount as my barnyard pullets at the same age. Having over two dozen cockerls is what is getting me now. But....This is a sustainable dual purpose breed. I've butchered two all ready and the meat is there at fourteen weeks. I only need to feed my husband and self. We don't need huge amounts of meat for a meal.
My HRIR chicks
Some of the cockerels got tails very quickly. Some of the females did not. I did not find any significance of feathers to sex with this strain at all. In fact, at fourteen weeks, I am just now sure about a couple of them being female. Some of them were slow to show.