id go with 2-4 in 11l pots,it will be easier to manage 4 plants and in 11l pots the roots have all the room tey need so u will fill a screen no probs in 4l pots u wont get a massive plant.remember the height/size the plant grows is relative to the size the plant will grow.just my opinion tho.what size space u got?? and what lights u using to veg??