Harold, I still have the Edge. Today I did an air test on the silver 3 cent coin. The Edge gives a hair better signal at 7" both with 8" coils, Sens maxed out. Also tested a 9" IH penny, the Edge did a hair better in air, Sens 9. The detectors seem to be neck and neck according to my air tests. They claim the C$ is very deep, maybe I have an ultra deep Edge. This past April the Edge found a 1853 three cent silver in a small wooded area, plus 14 IH pennies, two Shield nickles, and a seated dime. Some say the Edge is about as deep as the C$, I dunno maybe so. I think I have two excellent detectors. The C$ has more features, the Edge is lighter, both are built sturdy. Jabbo