Seems like I heard the Adire folks have begun doing the same thing these days, which leads me to believe they're using Eminence motors like are used in the Magnum series as their base design. If memory serves, Adire uses Eminence as their OEM source, so it follows that they would do this - The Magnum motors also use this technology. Eminence makes great products, so I was very happy to hear that they had begun to incorporate a flux stabilization ring in their new product offerings.