Practice writing the same words with different vowel combinations and different ways to phrase it. Here's a sample from Fundamental Drills. Also great to practice the different sizes of the outlines. For example, "c" verses "g".
The next 7 posts (this one included) were taken from a teacher's manual for the Anniversary edition of Gregg Shorthand that is on Google books archive. It was to instruct the students on proper penmanship for Gregg Shorthand.
This is a visual guide to help you remember how the outline is written.
It is in groups. So the SH-CH-J are in a group with similar outlines, but the penmanship comes in to make sure the words are distinct in your writing for easy reading and transcribing. The same with the S-F-V and maybe another S word with the S written in the other direction. Then the P-B column.
Read both down and across. Write and work on your penmanship. Transcribe.