I baked the first chicken I processed today for dinner. 300F for 2 hours, with a rub of butter, sage, rosemary, salt and pepper, garlic powder. Differences are subtle, but wow it's eye opening. I really understand what people mean now about the texture being firmer. It isn't tough in the slighest, it was juicy and tender. I always make gravy with the drippings, and made the best gravy I have ever made! Usually with the store bought chicken, the gravy ends up with a bitterness that I have always lamented as I lack the culinary knowledge to counteract it. This gravy had none of that bitterness, it was amazing.
He ended up sitting in the fridge for around 72 hours. I hadn't planned on so long, and only plan on 48 in future.