A1
A couple of things are happening here... I tend to take pictures right after "lights on" or sometimes even just before. In those last pics, only one of my two bulbs had even fired up yet (they go on about 2-3 minutes apart). What I've noticed, especially during stretch, is that a lot of the new growth is a (healthy) lighter green when the lights first come on. Interestingly, if i wait until toward the end of the "lights on" period later in the day, the new growth has had a chance to darken up and photographs better. Also, in person, they are a much greener light green - for some reason it's difficult to maintain the right color in the pics once posted to the web - they tend to look yellower.
But, they most definitely don't need more "N" at the moment. In fact, I'm making a concerted effort to keep the nitrogen in check, as I've had issues with too much in the past. Seems like every damned nutrient additive pumps up the nitrogen to try to trick us into saying "wow, this shit really works!", which is also why I changed cal/mag supplements and simplified my additives to the BPN line only - to reduce my "n" a little in bloom.
The frustrating part of this for me, is that in person i believe you'd think much differently, these really are about the healthiest looking plants I've ever grown, with the exact color I'm aiming for... Makes me super bummed that I'm not capturing it in the photos! Maybe I need to try harder to take pics once they've darkened up a little after lights on, and balance the colors better before posting...
I do, however appreciate the keen eye and honest feedback. You are right on the money to suggest that based on what you are seeing in the pics. I don't even notice it unless its pointed out (argh!) since that's not really how they appear in person. Sigh.
Cool on the nutes, brotha! I will be doing the same.
Thanks OMM!! 
