Basically, there are two kinds of regular script fonts: hanging needle vertical and hanging vertical.
For example, there are two vertical pens in the words "forest, species".
For beauty and elegance, two vertical pens should not be written as the same vertical pen.
The left side is often hung vertically (or changed to a vertical hook), and the right side is hung vertically.
Song Huizong wrote both vertical pens as vertical hooks, which is also beautiful.
Nowadays, regular script fonts are widely used in the media, and the vertical pens are all vertical, but the ones on the right are longer, showing great potential.