I'm not sure what LST is, so no, I haven't considered it. As I said, my colleague seems to believe that the taller our plants are, the greater yield we are going to get. My intuition tells me that the more lumen-power the plants get, the greater their yield will be.
Anyways, thanks for your...
I have always heard that no matter what the circumstances, lights should be as close to the canopy as possible without burning or raising temperature of the canopy too much.
Currently, my HPS (with glass) system is about 14" from the canopy, with a good temperature of about 75 (no burn) - we...