First Grow, 16 Top Mainline

[2Water]

Hey everyone, 6 weeks tomorrow from sprout, I have 3 MAC girls and 2 have been battling my rookie mistakes, but Home (I call her Riker) has been a hard fast grower from the beginning. I have read that mainlining is a 10 week veg, is that including seedling phase? Also, does that mean I should wait 4 more weeks?
I am growing in LOS in 5 gallon fabric pots.

I topped Riker last night to 16, what do you guys think for 6 weeks from sprout?



Here are the other 2, back left has 8 tops, back right has been battling every one of my rookie mistake (super stunted)

[Mr.furley]

I think Riker could use a hair cut, id take 5 large leaves off from the middle. Back right is small for the age, the others look good. As far as a time line there is no guide line on days, the rule is how much vertical and horizontal space you have.

Look at it this way every environment factor you have will determine the final outcome.

[Clutch707]

Like Mr. Furley says that's up to your steps you take but nest bet is switch to flower when your half your desired height or you'll be super cropping aside from that me being a new grower myself you'll get good sound advice here especially Mr. Furley he's helped me a time or two 😉
good luck and happy growing

[2Water]

Thanks Mr Furley and Clutch707. First time, so lots of unknowns for me.