| a) | proper alignments: |
| i) | dimensions: |
| 1) | height - lower to mid face |
| 2) | depth - elbow slightly bent at full extension |
| 3) | width - directly ahead |
| ii) | body alignments: |
| 1) | hand inverted (palm pointing diagonally upward) |
| 2) | wrist kept straight (not bent up / down and / or side-to-side) |
| 3) | elbow inline with hand (vertically) |
| 4) | shoulders - relaxed |
| 5) | upper body / hips - Neutral Bow rotation |
| 6) | legs / feet - Neutral Bow rotation |
| iii) | Point of Contact - index / middle finger knuckles |
| iv) | stance - Neutral Bow |
| b) | proper formation - weapon (hand): |
| i) | fingers - standard fist (tightly bent and kept together to form Compact Unit) |
| ii) | thumb: |
| 1) | wrapped under bent fingers (Compact Unit) |
| 2) | do not allow to separate from contact with fingers |
| c) | execution: |
| i) | Method of Execution - Snapping |
| ii) | execute directly to target (prevent cocking / pumping) |
| iii) | improper execution: |
| 1) | improper speeds / methods: |
| A) | executed too slow (transforms into upward push with knuckles) |
| B) | executed too tense (unable to achieve proper 'snap' of strike) (strike looks 'pushed' upward) |
| C) | strike not tensed at Point of Contact (improper timing / never tensed) |
Form Specific
| a) | Common execution errors: |
| i) | weapon cocked (pumped) before execution (not from Point of Origin) |
| ii) | weapon not fully extended or hyper-extended |
| ii) | leaning (typically forward) with execution (typically for extra reach) |
Comments
| a) | Common errors: |
| i) | formation: |
| 1) | over bending of wrist (forward) |
| ii) | alignment: |
| 1) | not properly anchoring elbow |
| iii) | execution: |
| 1) | executed with an arch at the end of travel (instead of linear - diagonally) |
Example of a proper vertical back-knuckle (right)
Example of proper vertical back-knuckle formation
Examples of improper vertical back-knuckle weapon formation / alignment
thumb hanging, wrist over bent,
pinky handing, thumb tucked
Examples of improper vertical back-knuckle execution
improper height - low / high, width - narrow / wide,
leaning (weight distribution), not fully extended