coiled breakaway cable for 5th wheel

I went to the coil type after accidentally pulling breakaway on a sharp turn after leaving campground. I hook my cable to the tie down in pickup bed, don't hook it on any part of 5th wheel head. The reason for this is if hitch does fail, the breakaway switch will not be pulled. Same thing on rear bumper type hitch, hook breakaway cable to the vehicle, not the hitch or safety chain.