Sexing first, would be the intelligent choice in my opinion.
SOG is not SCROG. They are two different techniques. SOG (Sea Of Green) is when you are filling an area with plants in order to grow a uniform plain (Sea) of "untrained" plants. SCROG (Screen of Green) is training plants to grow across a screen or to fill up a screen in a manor that creates the plain at a predetermined height.
The idea behind these methods is simple. (Equal amount of light to each plant or bud site)
A light (artificial or not) produces X amount of lumens. The plants surface area (leaf surface) is what catches the light in order to produce photosynthesis. The surface area of a plant is determined by the structure of the plants shape and height relative to other parts of the same plant. For instance: A Christmas tree shaped plant (Evolutionary traits of a sativa) will have a surface area in the shape of an upside-down V. The top of the plant being the area that receives the most light; giving the "Top Cola" effect. A dome shaped plants surface area is much broader, and designed to catch more light (evolutionary traits of an indica).
If the light being used is rated for say 4 square meters, it would be beneficial to fill the area completely with in that space, in order to benefit from all usable light produced.
This can be done with SOG by filling the area with as many plants as fit, or by SCROG; filling the usable growing surface area with foliar growth no matter how many root systems there are.
SCROG is advancement from the earlier method of SOG. This method was developed in order to allow even growth and equal opportunity for every bud site. (No bigger buds on top, little ones inside and on bottom)
It is also advancement for those who are subject to laws that pertain to the number of plants grown.
I hope this information is a bit of help. I don’t mind answering questions if you have any. Take care, good luck with your garden (looks well!), and pass on the knowledge.
