The plant in the pic above pulled 25oz of finished meds. It's no fluke, either; I've pulled many more like it, as big as 27.5oz so far.
I may have spoken on this a time or two but I dont mind spinning it a bit with a different example.
Vert Scrog. So, stand in place. You, are a plant. Your body is the stalk. Spread your feet a little, it makes it easier to stand..I.e. roots.
Stretch your arms above your head, they are branches. Now make a fist, it is a bud.
Now if you are really standing there like a tree you will quickly feel this example.
Lets vert scrog you. Imagine the light is on the wall strait ahead of you, stretch your arms toward it. Ok at first right? Before long however, you feel the need for increased arm strength.
Your structure is developed to bare weight in a certain manner. The plant evolved according to both direction of light and gravity as well. (Gravitropism, phototropism)
To grow more flower vs stem, limit the need for stem production by accomidating the plant vs requiring it to fight gravity.