I read some place the perfect length for crappie is a total overall length of the jig including hair/marabou is 1-1/2" inch long? They said any longer or any shorter and you will catch less fish. This was only crappie they were talking about. So far for me the 1-1/2" length works great for me on crappie. Note: I fish the far northern states, bigger may be better down south I don't know? But we do catch crappie up here to 15" and the 1-1/2" rule still seems to hold true.