In particular, Galea concentrated on the manual of arms for the three quick-firing guns. Sunset and a young unicorn stallion objected when she specifically forbade using any spells in the process. As always, she had a ready answer. "First off, careless spellcasting's been known to touch off powder—not often, but just once is enough to ruin your day. More importantly, everypony has to do the exact same things in the exact same ways, even if they aren't always the best ways for any single pony. Otherwise a designer can't count on her gadgets being used, or an officer can't count on her orders being carried out, exactly the way she has in mind. That never ends well, I can tell you."