Anyone grow any pure Sativa strains like Durban Poison or Sour Diesel in small grow tents (height wise like 60 inches tall like the popular 2x4x5 tents) with success or have any tips from their experience doing so?
I personally don't have any experience in that realm. A friend of mine did though but he was using a clone of a haze strain. He scrogged and flipped early and it turned out well. If you are growing from regular seeds you won't have the luxury of knowing sex and it could all be for naught. I'd say if you have a clone or feminized seed go for it and just train it low.
My last plant was a bagseed that must have been sativa dominant. It nearly tripled in size during the stretch and took almost 13 weeks to finish flowering. I grow in a 2 x 1.5 x 4 closet space. Here it is when I switched to 12/12 and then after the stretch: Lst is your friend and maybe a higher K spectrum during the transition right after you switch to 12/12