2x I’m happy with. I try to let them fill between 50-75% of the tent when viewed from above. Usually when I do this they fill the tent perfectly, wall to branches covered in buds. This tent is my small tent and it’s just her and a clone. I do t think it’s gonna fill in the way I like unless they both stretch and fill in at the same time.You like the leggy girls huh ? I’m good with 1-2times stretch, but not 3. She will be substantial.