system
A chat on subreddit /r/me_irl
human
8 is just as fast and leaves your hand in a better position to write the next letter.
gpt
The amount you move your hand from to write the next letter when using 7 is the same amount you move your hand AWAY from the previous letter to start writing x in 8. Its the same thing just on opposing sides of the x. To use 8 is to start writing the x in the least optimal spot  instead of finishing in the least optimal spot