Im only new to this game but i have been trying a little experimenting myself on makeing them not to big and getting more branches to flower from, this is a pic off one off mine still in veg but its been in veg from seed for 2 months im about to set her on 12/12, to get this size and tons off branches i trimmed a good quantity off shade leaves off her every 3 weeks and tied her branches down for 2 weeks then took the ties off then 1 week later i tied the branches again this time diffrent directions and trimmed sertain leaves off to let light get to spots i thought needed it, I also kept her in a reasonably small container but not to small, I have a photo uploaded off her 4 days ago but i dont have one off her trimmed so you can see all the branches, each branch that comes off the centre stem has atleast 2 more branches coming off them and some have 3-5 comming off them.
your plants are looking sweat to, from what i gathered do you have them in the bottom off your tv cabnet?
thats my hairy one and the next is just a younger plant that seems to just be small and thick stemed with purplr on the bottom off the leaves, i dont know what type they are as i got the seeds from a friends stash.
ok good luck with it all.