If you're "casting out" from a jetty, more than likely you're throwing your bait right over the fish! Jettys attract fish, you;re better off casting PARALELL to the jetty. Bait gets flushed out of its hidey-hole on a dropping tide. 6:00 may have been too early. Try a tide that bottoms out at 12AM and start fishing at 9PM. If the lot to Manhattan Beach is closed, fish the rocks next to the park, or on the Sheepshead Bay side near the college. Some brave anglers work their way out the riprap next to the college all the way to the point!
Al gave you perfect advice regarding the drift rig (3-way). That's for boats!
No weight on the Eel, S-L-O-W retrieve. Just enough to keep the line tight.
The very best time to go fishing, is when you can!
If you find you must fish the incoming here, use chunks, a fishfinder, and fish the sandy beach. NOW you can practice your casting! No retrieve except to change your bait.
Flounder