I took a short look at it (sitting at work). Nice video quality..
From a riding perspective, your buddy (the really wide-ass looking Duc) should practice his seating position when leant over. He only hangs off with his butt, but his entire upper torso (which is what really matters for cornerspeed) is centered on the bike.
In other words, his seating position makes it easy to drag knees, but does nothing good for cornerspeed. The bike should lean a lot less if he moves the upper torso into the corner.
From a riding perspective, your buddy (the really wide-ass looking Duc) should practice his seating position when leant over. He only hangs off with his butt, but his entire upper torso (which is what really matters for cornerspeed) is centered on the bike.
In other words, his seating position makes it easy to drag knees, but does nothing good for cornerspeed. The bike should lean a lot less if he moves the upper torso into the corner.