I never use lst when I’m growing in a scrog.i just top at the third node and from there I just let her grow a few weeks and then I super crop them to the height of my scrog
I only use lst on auto’s
Because I belief you get bigger stems when your plant isn’t fix with lst..due to the wiggling in the wind your stems get stronger and bigger
But that’s only my opinion,best way to find out is to experiment with it
Happy growing and stay safe ✌️