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02-22-2012, 02:56 PM
  #20
Jarick
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Join Date: Jul 2007
Location: St Paul, MN
Country: United States
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I don't sharpen so I can't tell you exactly how it works, but this might help.

Basically instead of a section of circle ground out from the blade, the bottom is flat except for a tiny ridge on either side, like this:

|\__________/|

There are a few options for the length of the flat area vs the height of the ridges, but essentially it's like the glide of a 1.5" radius plus whatever amount of "bite" you want depending on the height of the ridges. I find them to be far more predictable than radius. They only grab the ice when I want. Tight heel turns are much easier for me and I never lose edges. Plus I only sharpen them every few months.

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