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mitguy
May 1, 2006, 6:48 AM
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Registered: Jan 22, 2006
Posts: 84
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The BD 10cm screw is not CE certified. Does anyone have data on how well it holds up compared to the other sizes (empirical or otherwise)?
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andrewbanandrew
May 1, 2006, 7:10 AM
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Registered: Nov 10, 2004
Posts: 441
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well, there was a picture floating around of a 10cm screw tied off to 6 cm that held, so...
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skiclimb
May 2, 2006, 3:25 AM
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Registered: Jan 11, 2004
Posts: 1938
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A 10CM screw in good Ice is bomber. CE cert does tend to be overkill..
In shallow Ice i'd rather have a 10cm sunk than 17 tied off I suppose. Especially considering the proper placement is with a slight downward angle.
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drake
Jun 24, 2006, 10:57 AM
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Registered: May 24, 2004
Posts: 136
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I took a 30 footer on a 13cm Express screw this season. The ice was very funky (reason for the fall). Of course with that much rope out, the screw took less of a force than a short fall.
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