PF, MB, TB

They should start stretching when they hit flower and may increase in height cobsideraly - they are bushing out nicely. If they get big you might not have much room in the 2x2 - suggest taking the humidifier out when they hit week 4 as the humidity should stay pretty constant with some bigger plants in there as you will probably increase waterings too (more vapour present by default) Not sure if it is the light but they all look a bit pale, are you feeding nutrients yet?

I myself don't like using nets as if a problem in one plant arises, it make it difficult to get in to fix. I grow plants straight up, no topping and I grow um out fast and strong. Any extra from a scrog can be replaced by the extra one or two grows you can complete in a yr. I can bud out plants 6 times in one yr. 5 weeks of growth from sprout and 8 weeks of flowering. Cheers