I have the Falcon 2 with many miles pulling relatively heavy (4500Lbs+) Ford Explorer. Your trailer hitch should not buckle if it is proper rating. The hitch should be min Class 3 (or better class 4). Mine is 10K Lbs and 500 lbs tongue weight rated. I have made some slow speed fast stops that have hit the bar pretty hard, but I have never had to lock up the MH breaks engaging the ABS to avoid a wreck. Hope never have too. So I have not actually ever stressed the Falcon 2 in a full up emergence power slide. Also, I have heard that if you do head on wreck the MH, most any bars will fail in that situation. I'm using the ReadyBrake on the Ford, and this help slow the vehicle reliably and only requires slight adjustment annually - a simple process of adjusting the cable length a little.
02 Itasca Horizon 34HD FL XC Chassis/CAT 3126 330HP, 05 Explorer, Falcon II bar, ReadyBreak.
Toys: 6x12 enclosed, YZ250FX, YZ250, KTM250XC, XR80, Regal LSR 2100