The problem is you don't want to make the score harder to read for someone who does know some theory. Say you're in G# minor, then F double sharp is going to be

The problem is you don't want to make the score harder to read for someone who does know some theory. Say you're in G# minor, then F double sharp is going to be pretty common. If you notate that as G natural, it will confuse me. Raised 7th degree in a minor key is easy to understand. Flat first degree is...well, I can only assume we've entirely changed keys. And this is going to happen automatically in my mind, but figuring out it was supposed to be a raised 7th but was notated wrong will not be automatic and therefore slow things down.