I personally pluck them. Think that a lot of the flavor is in the fat that is under the skin. If you are keeping him a while, you can fatten him up a little in a small pen/cage. I cook them in the crock pot, with rice and mushroom soup, especially if they are pretty lean like a lot of roosters can be. Start @ 10 am, done by 6pm on low. An older bird is good pressure cooked and boned, just use the meat like canned chicken, or pressure can it with your broth. YUM! It takes an older bird to not turn to mush in the pressure cooker. I also like to keep the fat, put the liquid from cooking in the refrigerator and skim off the fat from the top the next morning. It is easy, the liquid will be a firm jelly. Keep the fat and use it to fry your potatoes, YUM!
This little guy was younger than yours, about 14 weeks and 2.5 lbs. 6 hours is plenty for younger ones like him.