LST is supercropping, and growing sativas well under a 400 HPS is not easy, regardless of the training technique you use.
Isnt supercropping when you ever so gently snap a branch and let it heal?
LST is "low stress training", snapping a branch is hardly low stress, although I'm sure it wouldnt be much of a stress event other than a few days max of droopy leaf..
Doing a combination of different types of training and pruning is the way in my opinion. I start by topping my plants after I get a few nodes, then I chop off remaining lower branches so I have 4 main branches to work with, from there either I go with LST and be done other than a little supercropping or then I go with scrog.
If I go with LST and no scrog and have time before switching to bloom, I'll do a light super cropping on the branches that are going to produce my main buds. Look up how kyle kushman does it, basically you kinda roll a branch back and forth between your fingers until you get a little crunch going on without doing a lot of damage. My current crop I tried different ways to train/top etc... and I did 2 or 3 branches on one plant that I LST'd into 4 main branches, the ones that did not get super cropped are smaller by quite a bit. In my very limited and inexperienced opinion, all of the training and super cropping should be done before switching to 12/12, I am pretty sure some people do more training in bloom and I'm not to sure about it. I dont like slowing my plants down with stress any other than a pruning that I do when the stretch stops.
Theres so many options as far as how to apply these training methods, its all about what works for you in your space. I've only done this stuff with hybrids so I'm not sure how any of it will work with specific strains, I'm sure theres some that may not like certain things and you'll know about it when it happens, but for the most part any kind of training/topping/pruning can be applied to any strain, how and when is more strain specific I think.
