I like to use a small weighted cork varying 12"-24" above the hair jig. Cast, pause, jiggle, pause, & reel....cast, jiggle, reel, pause, raise rod and pause, reel slack, & repeat. The fish will let you know if they prefer it still, moving slowly, or moving constantly. Some people in other circles refer to this technique as the "float & fly" technique. It can be deadly efficient when the crappie are densely congregated on brush or the bank.