Cod, wolffish, cusk, pollock, haddock and the mixed bag on Jeffreys Ledge all respond to the same rigs. Clams are a good choice of bait on several counts: They offer good scent release; they work even when fished in schools of natural bait, usually herring and sand eels; and they're durable, especially important when checking the bait means retrieving 200 feet or more of line. Clams are usually good for three or four hits, so fishing time is maximized. We fished 20 to 24 ounces of weight, usually a diamond or Norwegian jig, on the end of a 50-pound leader, with a dropper and a 6/0 hook baited with clams a couple of feet up the line. The weight is critical, especially when fish are hugging the bottom.