This is something I found while thinking about Todd Baio's picking style. Mel Bay Music has Banjo Sessions that I thought might give some insight. Here's a study of Cripple Creek on Tenor Banjo that I'm saving for reference. The tuning is DGdg so 99% of us are not going to try this... I'm just looking at the TAB and the picking patterns used for reference.
More info from Mel Bay Banjo Sessions [Finger Rolls]