One of the advantages of the Noch version is the capacity.
I paint the area where I want to "plant" grass with a earth colored latex paint, then "plant" the grass.
The Noch version allows for a much larger amount of static grass to be applied that the tea strainer version IMHO.
In my experience, it is wise to practice off-layout to get the knack before doing on-layout application. Practice means
developing to technique, but also determining the color, length and blend of static grass one likes to achieve their goal for a scene.
IT LOOK GREAT WHEN DONE WELL!