Sharpening the Charge/Wave serrated blade

[Magic Bus]

Dunc'c sharpening thread is an excellent read, see below
http://forum.multitool.org/index.php?topic=1201.msg13326#msg13326

All I want to add is a couple of details re. what works for me and my particular Charge

I slide a single CD case under the Sharpmaker as in the above photo, making sure that the right hand edge of the case sits under the middle of the Sharpmaker. The sharpening stone is in the 40 degree edge hole. This allows me to evenly sharpen the blade bevel.
Dunc's advice re. using a black marker on the bevel is essential.