Fluke belly strips work JUST as good as squid...and last a LOT longer. I've also had some success with Skate belly/or wings...white skin only. Bounce it along the bottom stopping from time to time...and don't give up on the cast, work it until it's out of the water. I've had fluke come right up to the surface chasing after it. Live bait is ok too ...
...a babyherring/mummy/snapper/tinker/large silverside...and don't be surprised if you hook something other than a fluke
I'm sure one of our sponsors must carry these...small rubber squids, maybe 4" in length counting the skirt. If you put a pinhole through the tip/head you can slide a leader into and through the body, then slip the leader through an egg-sinker (size depends on current and depth). With the egg-sinkers I use, they get lodged in the squid's head area. I then tie the hook so that it dangles inbetween the tenticles. If the egg-sinker is not cooperationg (meaning if it's sliding up and down the leader, I'll add a swivel until it works the way I want it to. Then all you do is add the "strip" (squid, fluke-belly, pork-rind, skate-belly). I doodled a picture if anyone's interested...it's well worth it.
Good Luck ~