hi Scrog
I start my plants in 1liter pots and I believe you should not really let the plant grow for over 3-3.5weeks in there , cause if you have fast growth it will start to be limited/restricted by the rootspace.
With the final 10liter pots you can veg a plant for up to 4 weeks or 5 max depending on strain. But when I veg plants for 5 weeks I may use 16 liter final pots sometimes.
As for LN and topping well if you veg for 2-3weeks before going to flowering I think its best to avoid topping. The plant will yield much better if given at least 4weeks veg and then topped right before 12/12. This way it will grow big enough and yield much better considering the resources given. LN is a plant that flowers fast so this is the reason I think this plant needs a longer veg that other lines. SSH , MH , NH do much better with 12/12 from seed and less veg in general as they are slower to flower and take 10-12weeks while LN is a 9weeker finisher(most phenos). Its not a light feeder really but it requires less nutes than strains like Shit CriticalMass etc. Some phenos may be light feeders tho , the more sativa expressive ones.
Hi Ronin,
looking forward to hear how things went