I know the light was one issue causing burn on the plants. What I now see is different, and very odd, I've never seen this in all my grows, of any plant. It's not pythium, there's too much oxygen in my system to allow for that and the roots are clean and not slimy to touch. This isn't a lockout judging by the looks of things, so I'm betting on this being a burn. I've typically done a light underfeeding for my plants, so I think the slightly heavier formula I've concocted might be causing the damage and might have exacerbated the light burning.

Per gallon of approximately 250ppm tapwater adjusted to ~5.8:
10mL GH FloraMicro
20mL GH FloraBloom
2.5mL Botanicare Cal-Mag
2.5mL Grotek Pro-Silicate

Otherwise, the plants from the PC case are blooming out nicely (and they're on a lighter solution given their small size, and they exhibit none of the symptoms on the other plants minus the light burn,) and the Krusty bucket is showing more. The DWC not so much, so I'm holding off on pictures of that for the moment.

This is day 3 of week 5 of flowering for the plants from the PC case, day 3 week 4 for the DWC/Krusty. Given the time of flowering, I'm really betting my nutrient solution is causing a problem.