My god, any time someone suggest something someone throws the word Hermi in there. It is like saying you will get aids or something and is just pure bullshit. Those with hermis in the world are growing hermi prone genes. I have abused marijuana more ways than you can shake a joint at and have never had a hermi. I don't buy seeds from some of these so called weed gods though, so that may be part of it.
I am growing a Colombian Gold crossed with Jamaican Lambsbread fom USC. They have a pretty good reputation for that sort of thing and I have seen no reports of anything they have going gay on them.
The biggest reason to Not supercrop late in flower is that the heavy buds of an indica dom will just pull the bud to the ground, not a good idea. Not the case with the light airy buds of a pure sativa. In fact supercropping a pure sativa is probably the only good way to grow a pure sativa indoors.
My Col Jam is two months old from seed and starting to flower. I have two of them (plus some clones of both). I cut the main stem a couple weeks in and caused the plants to split into two main stems. Then some smaller branches started coming up. I knew right away that I had my hands full if I was to grow this indoors. I started pinching and bending branches down and it is working well. The plants have been in flower for a week or so and little bud sites are happening everywhere. I have months of flowering ahead of me and long node spacing. I have already begun supercropping some of the branches more than one time.
What has happened is that when I pinched a branch and bent it down it formed a tough knot at the bend site. The branch grows down for awhile then starts growing up again. I pinch and bend it another direction. I will continue doing this for as long as I can, but will certainly do it during the first month or more of flower, where this plant has it's biggest stretch. I had these plants in one gallon container for almost two months and just switched to the three gallon container once it showed signs of sex. The plants are taking off now in growth because of the new container. I may even transplant into a five gallon container, but that remains to be seen. I will continue to supercrop as long as I do not think the bud weight will pull the branch down.
Sativas are very fibrous and lend themselves well to this sort of abuse. The longer node spacing also lends itself well. I believe that supercropping these plants has also made more bud sites than if I hadn't. Light penetration on the budsites will be better because I am bending the branches in directions that are customized to my lighting and space needs. This is in my opinion not only the best, but the only real way to grow a pure sativa indoors. I stake my reputation on it.
Anyone with any empirical proof that anything we do to our plants causes a hermi show it now. I swear that the hermis that appear are purely genetic. Sam the Skunkman planted thousands of Thais and said that 25% of them were hermis and they were all grown together outdoors in Holland. These plants were naturally hermi in the best of conditions, outdoors.