There have been several posts here concerning
the omission of minor vowels in Gregg Shorthand. There is some guidance in the
earlier material, such as the 1916 Manual and the related Qs and As book
(1924). But what about Simplified?
Rich Harrison recently pointed out that certain texts are available on the Open
Library. I had a look at "Gregg Speed Building Simplified", and
there, at the beginning of each chapter, are the principles for omitting minor
vowels in Simplified; these principles are probably also relevant to other
versions of Gregg Shorthand.
I have attached a summary I made for my own reference; please feel free to use
this if you wish (and let me know if there are any mistakes).