I've noticed that too, externally they look the same. Where the cradle attaches to the grip is ok, thats standard spyder stuff, my problem is on the other end of the cradle, where it attaches to the bottomline. I though it was the same on spyders as it is on spyder cloned, but I guess its not.
On the Dragun, the mounting holes for the cradle-bottomline are set right next to each other, which is unlike any cradle I have ever seen. Its all probably just a marketing ploy to get anyone who wants a longer cradle to buy another reggie and bottomline.