Bumps Criteria for Level 4 (ISTD) (The top level in the BASI System.)
As published by BASI in the Video Clip c2010
- Perform continuous linked turns - with no traversing
- Ski various lines and corridor widths
- Perform at (or above) minimum speed
- Remain in effective posture and balance
- Red or Black Terrain.
(Level 3 is the same - just on Blue and Red Terrain)
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Bumps Criteria as used by BASI L4 in 2014
- Ski a fall-line descent, at or above the minimum speed on a black steepness slope
- Perform a variety of lines and tactical approaches
- Use effective posture and balance
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