So that's it!
On the beggining of week 4 I've gathered courage to top em', and they've been stunned all week, coming back to growth on the 29th day.
And I realized they started drinking a lot more after the topping.
I'm still trying to get the hang of the LST, and unfortunately I damaged some leaves on the process, hope I'm doing allright.
And don't worry! I watered them right after taking the photos of day 29 =)