The weight at the top of the trace helps keep the hooks tight on the bottom and the appropriately sized hooks cope with the comparatively small mouth of the sole.
The principal behind this rig is that of two mini-pulley rigs and provide less resistance to the biting fish. The clips allow this rig to be fished at distance.
The principal behind this rig is that on impact with the sea the swivels will release and the trace will slide down the body to allow the baits to rest on the seabed.
A rig for fishing artificial lures close to the seabed