They're boomin! I'm glad I switched the lights when I did. The Spruce and Bruce Banner are pretty evenly sized at this point. I waited a bit too long to trim a lot of the undergrowth on the Bruce Banner but I finished most of it today. At this point I think I'm done training, I was mostly just tucking a branches that got super tall the last week. I am happier with how the SGS twins are turning out but they're still a bit lacking, and even the leaves seam rigid and just not as healthy as the other two. With how things are turning out though, I can't complain.
Also, just in love with the megacrop so far. I've used nothing but MC except for one watering I used silica, but you can't get any simpler. The couple times I had calmag issues I upped the dose and haven't had any problems. At this point I add ph down only if I feel like it since it comes out to 6.6-6.7 without any ph adjustment at 5g/gal. The leaves are dark green so that's when I know they don't need any higher dose for the time being.
Had to start running a dehumidifier in the room that holds the grow tent since the hot outdoor temps started to hit, but it has been working well.
Overall the biggest weakness of the garden so far is just my laziness. I'll wait a day too long sometimes to water, but they always recover gracefully.