mr. marijuana seems to think 3lbs is impossible unless u tie down... hey vg i got a question tho, what do u do for support when u lst? cuz everytime ive lstd i had them in tomato cages but they go so far out that the cages dont do anything and i ended up having to tie each individual branch (pain in the ass) to a frame that i built above them. im sure there is an easier way and im guessing u would be the one to know...
In my greenhouses, I use 3.5' x 3.5' sheets of 6" remesh, suspended four feet above the ground, horizontally. The branches grow through the remesh, which provides support.
In my cage, the chain link and remesh "roof" serve to create a huge ScrOG. Some years, I run twine across the cage about four feet above the ground to help train the plants.
For people growing in the ground with plenty of area, I suggest remesh cylinders about 4 feet in diameter and up to 7 feet tall. Some add a remesh sheet, placed horizontally across the top of the cylinder. Training takes care of the rest.
In past years, before I built the cage and greenhouses, I would put a tee post near each plant, and tie heavy branches to it with lengths of twine. It worked fine.
another thing I do is wet the plants down, each time I water, which strengthens the individual branches. This helps prevent collapse during rain/wind, late in budding.
The main thing is knowing how large your plants will get, and installing the supports so that the branches will grow through them, before budding starts, but late enough that no more than three feet extends through them.
Hope this helps!