If you're not a tru purist about it and want to find some of the biggest crappies in the school, use a beadhead or clouser weighted for depth you're looking in. Use yellow or chartreuse and white marabou lightly tied on a long shank 6 or 8 light wire hook. On the hook hang an Uncle Josh spin strip about 1" to 1"1/4 long. Forget the bobber and just crawl this in with the handroll technique and watch your line tip where it enters water. Like I said...if you're not a purist...and I'm not, tho I personally haven't used this in a few years I know it can find the bigger fish in the school.