Mainline them bitches! I just finished my first go at it and Im fairly pleased with the results.
(site)
this is the link to Mainlining if you don’t already know what this technique is.
It’s a form of HST i believe. But it worked out great and your plants look just about big enough to start. I started mine between the 5th and 6th nodes. Check out my grow at Unknown strain grow journal - #82 by garrigan62
If I had the space I would have done two or three plants. Good luck!