The DMM Dragon Cam is a beautiful piece of kit, obviously inspired by the Camalot but with a few innovations of its own. Hot-forged cam lobes trim off any excess weight and the extendable 8mm dyneema sling allows you to lengthen the runner to reduce drag and stop the device from walking.
The 13.75° camming angle is generally considered to be the optimum angle for a balance of holding power and expansion. and is based on the very first SLCD (Spring Loaded Camming Device) made by Ray Jardine.
Contrary to popular belief, the DMM factory isn't powered by fire breathing dragons. These are unfortunately extinct (as far as we know).