Basically you put a screen about 1 foot above the base of your plants.
Instead of letting your plants grow up straight through the net you bend them over as they grow and train them to grow sideways.
Once you do this your plant will put off many more budsites. You continue to do the same thing with all the new shoots on the plant.
Keep tucking them back under the screen as they grow out, and move them into a space where there are no bud sites.
The goal is to keep your canopy nice and even. You are redirecting auxins and turning all your budsites into main colas.
The colas all get the same amount of light which leaves you with a nice even carpet of huge, heavy, dense colas instead of only 1 main cola per plant with smaller buds, and scraggily shit.
Will easily double your yield.
You can check out My, and Hazy's growlogs as well to see how it works.
Peace.
Tav