SFD

This is a cool little gizmo.

http://www.sheltonproducts.com/SFD5.mov

Been doing something similar long before Shelton came along.  I take a 6-8 ounce jighead and take the barb off.  Then I snell a leader to the bend in the hook ... it's backwards.  Attach to line, lip hook a fish, and send her down.  A quick jerk on the rod pulls the jighead free after you reach bottom.

-Allen