Anyone using a rolling sharpener?

[Jonathan Wexler]

i use s spyderco triangle sharpmaker. It resets your edge and leaves you with a sharp edge at one of 2 angles. I can see tht this is the reverse. Instead of the sharpening stone being kept stable, the blade is kept stable. Depending on the quality of the Sharpening surface material. This should work and give you a precise and consistent angle.