Double jig or single under a slip cork?

[Spaceman]

Single jig. Although, I seldom use a cork with a jig. For deeper water and finicky fish, I will fish a double jig rig (loop knots) using two different baits to see what the crappie favor.

[Hanr3]

Single hook rig under a slip bobber all the time. Shallow or deep doesn't matter I still use a single hook. The slip bobber assures consistent depth every cast. Advantage to a double hook rig is fishing two depths, however I throw out another slip bobber rig at different depths until we figure out what depth the Crappie prefer. Then every body switches over to that depth. When the bite is on, double rigs actually waste time and you catch fewer fish.