anybody cast double rig like jig on top and slab on bottom i remember my grand dad doing it going to try out at Ray Hubbard Saturday

Been doing it for years. Hand tied jig 18 inches above a silver dollar slab. Caught tons with this method. Make sure you loop the line with the jig so it stands out straight.

going to have to figure out how to loop the line

I use two bucktails with curly tails in a hi/lo rig. Works excellent for striper.

Do a search for dropper loop knot. Many how to videos.

I've done it before. But now days, IF I fish the double rig, it's in the deep winter.

Just remember this, the more fins you have flapping on a line, the more changes you have to get stuck.