[Auxilism]

When a magic symbol is summoned by the caster, is there a constant direction which it turns? (Eg. Always clockwise.)

Or is it based on handedness? (Eg. Clockwise for people who are right-handed (most of them), counter-clockwise for people who are left-handed (Nanoha is the only one I can think of right now) and a random direction for ambidextrous people (Teana is the only one I can think of right now).)

Perhaps it has to do with the magic style? (Eg. Clockwise for Midchildan users, counter-clockwise for Belkan usersand a random direction for other types (combat cyborg template, etcetera etcetera).)

Maybe it's just completely random?