ok i got these crappie secrets online let me know if you have ever used them and if they work

Take a mason jar and attach a 5 foot rope to it and punch holes in the lid, then put 6-12 minnows on it and drop it over the side of the boat. Then fish ur bait next to the jar. It said it creates a frenzy when the crappie see the unprotected school of minnows that they cannot eat.....? Sounds like it may work , anyone used this method or have thoughts