You’re pretty close then. You’re going to pull more per watt with those cobs, so I wouldn’t feel the need to push them too late. Even if you end up with a little more room than necessary it’s certainly better than the alternative. With the new lights and all I’d feel better going earlier than later anyway. If nothing else you’ll get to learn and figure them out without having to cut them short on light.
That’s just me of course, so run em however you’d like. I’m more concerned with whether I talked you into running a couple of clones 12/12 from root with them lol.