I would add that Jonathan Carr, the author of the Lyra cartridges, which all use line contact stylii, forwarded some information from research originally done by Namiki, that shows that a conical stylus of the dimensions of the Denon actually contacts the groove over a greater area than a common elliptical stylus. This means that the tracking force is distributed over a greater contact patch making the actual force at any given point less. Line contact (ie VanDenHul, Geiger, Shibata, Fine Line, etc.) stylii have ever greater contact area with the groove wall.
