I have various weights of the fox captive back leads.
i don't use them religiously but when I need them they are in a lead pouch in the bucket ready to go along with the solar flying back leads back from donkeys years ago when Richard walker was a boy lol.
don’t strike when using them either just pick up the rod and let the line tighten and mostly they then drop off.
if weed has gone around the gate and stops it opening a little flick of the rod usually sets it free.