Being a broad wing, they are capable of soaring, if that's what you want to do, then you do it. There is however no need, but also no harm in doing it. Off the fist, a red tail will have a very successful season, i cant really comment in regards to soaring, but i would think you will catch quarry from flights you would not normally, but you may lose out on a lot, i.e. rabbits sat by warrens will see the bird and go in the warren. Its entirely up to you, benefits to both methods so its your decision, i have fancied trying similar with a Harris, but instead of kite training flying from the top o