https://www.marthastewart.com/891288/how-spatchcock-chicken
It cooks more evenly so no dry white meat and undercooked dark meat. Also cooks at least 25% faster. I’ve done my Turkeys this way for about 5 years. With just two of us this year cooking a turkey would be silly.
Not sure I'm doing the same thing with Turkey, however I remove the wings and drumsticks and roast them separately so the white meat isn't overcooked.
Thanks for the link, it looks great, will definitely give this a try near Christmas.