Hey Gary, so I looked up the weight of your 2022 Flagstaff Micro Lite 21FBRS and based on that the best weight distribution and sway control option is the Strait Line part # RP66083 which has a tongue weight range of 400-800 lbs and features best sway control at fighting sway before it starts as it works to keep the trailer in a "straight line" as much as possible. view full answer...