Troy's got another vid out.

This briefly addresses jazz (Mike Stern) but is a general video about the technique of edge picking.

I think this is a very important technique for me both when I use leading edge and trailing edge picking in first getting a good, warm jazz tone, and secondly in 'smoothing out' the picking as described here, allowing a firmer pick attack without sacrificing agility or the legato quality of the picking.

Benson style grips create a larger amount of edge than more conventional approaches - I believe this is why Adam Rogers sounds so smooth across the strings.