Peter,
I\'ve had good catches with them over the last three years.
Use a 2 or 3 hook flapper and between the bottom rig swivel and sinker clip (about 3\") thread on a caged feeder before tying the sinker clip. Clip on your weight and distance is not a problem. My cocktail to fill it up with is a blended mixture of mackerel, trout pellets and bread (you\'ll have to do it when your lass is out). I do a big batch and freeze it down.
Once you start fishing try and cast to the same spot as after a while it really draws the fish in and crabs.