Originally posted by Kocho
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Unfortunately, I have not had success with my local shop, so I do it myself.
I use the SkiVision Base Flattening tool with the square steel bar. But what made it work was sharpening/honing the steel bar to have a burr that cut well.
Previously I did not have much luck with the tool. But once I sharpened/honed the steel bar as recommended on their website, it cut relatively well. I flattened 5 pairs of skiboards one (long) day without having to re-sharpen/hone the steel bar. You have to be patient. It takes much more time than sharpening edges. Each pair of skiboards can take over an hour to remove the excess ptex.
What I did find is that it works best on narrower skiboards like the SII. When wider, I had to cut a path near each edge first exaggerating the ptex crown and then take off what was high down the middle.
On hard pack, having the ptex flat to the steel edges, makes the skiboards very responsive to slight inputs. Being a casual cruiser, this is the tuning I like. Aggressive riders would not perceive a benefit from the required effort IMO.
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