#1 - setup where the bait is
#2 - see rule #1
use your FF to find bait then pick a place in 25' or less depth (20' is my go to) The reason for this setup is to control how deep the fish can be feeding. To start drop your offerings down to the bottom and reel up two turns then cover the rest of the depth in 4' increments. The bait will come to your light and when the crappie move in to feed you will soon learn the depth that your hooks should be. Feeding depths can change and it seems that some crappie will always feed close to the bottom. if the bite slows down start adjusting your hooks until you find the right depth again. The biggest mistake I see people making is using to much weight, use just enough to keep your lines vertical and you will see the lite bites. Sometimes the rod tip will come up instead of going down. Watch your rod tips constantly or you will miss many bites.