Yeah I am kind of in the opposite boat, I have to shut it down in the summer because the heat becomes too intense. I haven't ever really tried to sacrifice quality for quantity though, because then I just end up smoking more to get the same relief.
Okay, now this has my attention. Do you have a journal I can read through? Those lights look a bit fancier than your run of the mill MH/HPS setup. Are they COBs?
A little lighting conundrum...
So my last cycle with Alaskan Thunderfuck, I had to put my T5 in my tent at the same time so I was getting 515 watts. (Ok I'm breaking 400 watts, but it's my thread!) But the reason why I did so was because my plants stretched off on me, and I knew I wouldn't be able to get light penetration to the lower growth so I hung the T5 on the side to light the lower branches. I still got about 258 grams of smokeable bud, so I figure that at pretty much exactly .5 GPW.
I wonder if I got them to not stretch out so much, say keep them at 2 ft max, if my CMH alone would have been able to accomplish the same yield. I was pretty impressed it did so well even so high up, but I could noticably tell it got much dimmer it got in the tent without the T5 too.
I still can't really add any more watts so I have been deliberating about running the T5 and CMH side by side. I usually use the T5 in a separate veg tent, attempting to cycle but never really got the hang of it. Seems like it might be better used in conjunction with the CMH, but I also think that the CMH would have done well too if I had trained the plants better.