First of the bad news. I had to chop one of them as it turned out she got a rotten base stem wich was already falling apart.
On the bright side they are growing so fast that I might not even would had space for another one after LST. Compared to the Kali Dog I grow last time these are fast!
The main stems are already nearly as thick as my thumb and the roots are beautiful and plenty.
I'm gonna give them a few days to adjust to the tied down situation and then begin the switch. With that growth speed I would probably run out of space otherwise.
Still only have to top of once a week so far as water goes but that will probably change once they get bigger.