The traditional rig for catching pollack afloat is the flying collar, or versions of it. This consists of either a long, wire French Boom or, more likely, a plastic tubi-type boom sliding on the mainline or leader, followed by a small bead and terminating in a small, high-quality swivel.
The hooklength is tied to the other end of this swivel, and is usually clear mono between 8-12ft in length. The hook or, more likely, lure is tied to the end of this.
If using modern spinning tackle as described above, the weighted shad is tied directly to the end of the leader, dropped straight down to the bottom and wound back with a steady retrieve.
If you are losing rigs in the wreck, it is possible to attach the sinker with a weak link of line.
When fishing for pollack over reefs, some anglers still use strings of up to six feathers, or their modern equivalents. These are fished with or without bait.