6) SVSD Kotani system:
Easy to write is one of important conditions for Modern Shorthand.
Kotani system was invented new view point by Masakatsu Kotani realized the Same Vowel Same Direction policy in allotting grapheme.
He also took script value influenced by Gregg half-cursive theory.
It is not important to take Geometric or Cursive nor Half Cursive but to write correctly, quick and read easy and correctly.