I want to try the drop shot rig for some crappie but not sure what to do once the rig hits bottom? I will be using artificial 2.5-3.5" minnows as bait. Do I just let it sit....? Reel it in slowly a few feet then pause a minute, repeat? Also, how many feet up from bottom do you usually set your bait? I know in the cold months the crappie go real deep.