Im just going off my own personal experience. i germ. a white widow seed in MG soil about a month later got some clones from her, clones went into FF soil for 2 weeks veg. then to flower but just in those 2 weeks the clones out grew the mother. Same pot size same everything just different soil...
white widow 2 weeks veg.
light: 400 hps diy hurricane cooltube with reflecter 5 to 7 inchs for top of my ladies
tent:3' by 3'
ventilation: 4" in line fan for exhaust w carbon filter and passive intake
Temps: lights on 77 to 81 lights off 70 72
also have mataro blue, strawberry kush...