I'm looking at these pictures and I can totally see why your one plant on the end is stretching like its life depends on it. You need to bring all tree of those lights down and orient them flat. And you need to have the plants sitting all at the same level. The way you have them pointed, the 4 in the middle are getting the most light while the one lanky one looks to be 6-12" lower than the front two (and even the other back two?) and in a back corner of the lighting footprint.
I'm saying this principally because I am curious how you are going to light the big LOS pot. There isn't room in your current arrangement. It would start stretching too...and a plant with a container that size stretching could very quickly outgrow your tent. Granted I know you are flowering from seed, so no veg time. But it wouldn't hurt to be preventative because at the very least even if it doesn't out grow the tent it could become a real pain in the ass to move around.
If I were you I would put the two Mars panels side by side over the LOS container. The two of them side by side will create a larger more penetrative foot print that the dorm alone. Put the single Dorm light over the smaller Brix plants. It probably has a slightly larger footprint than the individual mars panels and should suffice over 4 smaller plants with maybe some help from a cfl here and there.
You could leave them oriented the way they are now, but like I said before I would flatten them out and lower them at the very least. They look to be about 3-4 feet from the top of the lowest pot? They aren't powerful enough lights to be growing any further away than they are now. Keep that in mind too.
Last thing...I know it could be harder with that giant T8 fixture, but you should find a way to enclose the rack...even if its just some panda film taped to the top that you roll up when doing maintenance. I would think that if you had that rack enclosed you probably wouldn't need to use as many CFL bulbs...those things are pricey as hell. Not to mention they aren't super powerful, so its crazy to think that you are probably losing 30-40% of their energy out the sides of the rack.
Sorry I don't usually get all ranty, but you have little to no light control in your tent. Once you nail it down you could be doing more with less. Remember that old LOS mantra
I think back to your first grow here which you always attribute to the LOS soil. Personally, I think the soil was a secondary factor. That was the only grow I have seen where you had consistent light. These plants are pretty hardy...they can handle moderate issues with the soil. But take away their main energy source (light) and you start to lose consistency, size, health, etc.
Just a thought. Keep rockin it, Sue.