2x4 sog questions.

I think I would stop at week 6. You have 10-liter pots, and leaving it until week 9 would cause problems and be a waste of time.

vege until about 1/2 of the area is filled. they will fill in the rest after flip. this is as much an educated guess as anythign else. there is variation in how much a plantn will grow after flip, but at minimum you should expect a doubling in size. this gets much easier once you see it happen a few times. take a pciture at flip... then take a picture once vege growth stops after flip.. use it as a point of reference in future if needed. you'll likely overgrow your first time :P

I think your best bet would be to wait a little while longer before you flip the switch. I think by week 7 you should be pretty good to fill out a sea of green. You’re likely to get decent stretch when you switch but that should be able to fill in all the open spots between the plants very nice. Just make sure you have ample airflow moving throughout. That’s a downfall of a tightly packed tent is one fan usually isn’t enough . Hope this helps.