But even with arrows that had their heads snapped off and were wrapped in cotton, accidents still occurred frequently. A larger problem was that spellcasters themselves found it hard to discern whether their arrows had gone awry or had been deflected by a spell.
Using a spell itself is akin to 'feeling' one's way in archery; the process of practicing spells is about deepening that feel. If archers don't know whether their shots hit the target each time, how can they find their feel?
Major Moritz's method of training was particularly ingenious:
Objects tied to a rope wouldn't swing back higher than their original height, so the trainees, positioned in an absolutely safe spot, wouldn't experience any additional psychological pressure;
As the swinging object on the rope moved closer to its original position, its speed decreased, making spellcasting less difficult and allowing practice to progress step by step;