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– slides during digging or cutting the block
slides during approach (climbing up the slope above the block) or stepping gently onto it.
slides during knee bend
slides during first jump
slides during second jump
slides during move to middle of block, deep knee bend and 3 jumps
R7 – does not slide
– does not slide
If the block fails before step R5
the snow is showing signs of instability
Make sure your snow pit (described above) is at least as wide as your skis.
Use a snow saw to cut the sides of the block up the slope about a ski pole length.
The critical step: Cut across the entire back of the block as deeply as possible (should be as deep as the front). This is also most easily done using a snow saw.
Notice at which point the block breaks and a layer slides off:
Avalanche Safety Test using the Rutschblock method