| Criterion | Score (1–10) | Comments | |-----------|--------------|----------| | Grip comfort | 8 | Finger groove feels secure, but the weight (≈ 1.2 lb) can be tiring after 30 min of continuous use. | | Balance | 9 | Center of mass sits just behind the finger groove, providing natural leverage. | | Fatigue (after 20 cycles) | 7 | Slight arm strain after prolonged impaling; a small wrist pad would help. |