@Ripper, Once you get over about 5 - 10 liters the plants tend to not really care about the pot size. It's all about what you feed them and how often. If they have the root structure to support their growth and nutrient uptake then it's not too important how much space you give them. More space can never hurt but as long as they can support themselves in the space they are in it doesn't matter. The professionals grow in hydro cubes 8 inches by 8 inches and sometimes I've seen even smaller. It's always quality over quantity. Then quantity of quality :D
Great work bud.