Any guides to mainlining I can read that are viable? Would genuinely appreciate it Gro-Bro.
"Main-Lining" definition: a form of training and managing canopy that builds a "hub" off of a single node and creates a "manifold" for equal energy distribution from the root mass to the growing tops.
www.growweedeasy.com
Just use patience is my biggest advice. I don't do any supports, stakes or ties I just top them into a mainline formation lol. If you want to get all fancy with it though you can tie down branches and stuff but when you're managing 2 dozen + plants its not realistic. Start the training early while they're clones and I personally wait for about 6 node sets and then will pick 2 of the most equal and big branches to use that are on different sides of the plant, chop the head off above it, clear all other branches and go from there.
p.s I do move them into a room with netting so they can grow up into it and at that point I will bend branches through netting but nothing serious, mainly just to support the branches and keep them off each other for maximum light penetration.
For yield look into Co2 Supplementation, VPD and intense lighting especially in the bloom stage.