Assuming securing the slide in extremely rough traveling conditions warranted crawling under the trailer to make attachments, hook/strapping could be done only by devising attachment points on the frame through the "belly shield". The trailer is slick underneath. Possibly a clamping devise could be fabricated to secure at both side frame points, and to the frame. Considerable fabrication, and still requires laying on your back to connect or disconnect. I am looking for an easier approach to secure from the inside, just to create more friction by inward force on the slide body. I think this can be done with straps or bungee from the top slide interior flange to a point on opposite side. Easily removed during stops. Also, i think some form of bumper block can be used in the gap between the slide frame and the edge of the wall opening. This would also need to be detachable prior to sliding. It is obvious that the slide suffers from a front to back repeated motion caused by trailer pitching on uneven roads. I.e. Hwy 101, Mexico, and others. I wish someone would invent a travel trailer hitch that would isolate the TV buck from the trailer tongue. The common WD hitches do not isolate that motion, perhaps dampen same. An opportunity for someone, or some company.