Harvest Failure(?) Again

I am at the end of week 10 of my current grow and the buds look ok but the leaves have gotten progressively worse throughout flowering. I am ashamed of the attached pic.

In any case does anyone have any idea what could be causing me problems? I am growing Blueberry and Peyote Critical in canna coco being fed with AN Sensi Bloom A/B and CalMag in a 2'x4'x5' tent with a 600W HPS (often dimmed to 400W because of heat) in an air cooled reflector with it's own dedicated 400CFM fan and a 260CFM exhaust with passive intake through a MERV12 filter (I have had mold problems in past grows). Temps get about 80F when dimmed, RH is pretty low (like 30%) but that's because the exhaust is exhanging air pretty damned fast through the tent and without the huge negative pressure in the tent the temperatures are unbearable (near or over 100F).

There were signs earlier on of nutrient burn when I was using the recommended dosage of 4ml/L so I have backed off to about 3/4 strength or 1.6-1.7EC (after addition of CalMag and using hard tapwater with 0.4EC).

Most important of all though, I can still smoke this though right? I mean the buds look fine, smells wonderful in there. But they look like shit :/

just cause she's ugly, doesn't mean she won't make you feel good!

Looks to me ya have had ya light far to close and its a lot of heat stress and bleaching

Some of the colas are brown so either dried out or mould/>>>?>?>?? You can see the different shades

Yeah the buds are fine. Looks like the plants are pulling nutrients from the leaves.

Next time don't order the extra crispy.

Sorry , also probs been feeding too strong and too often .

I've had a plant shed every leaf. Yellow and dried. Bag seed mystery plant.

You'd figure it'd die but no. The smoke was....straight crap. The kinda crap you throw on the table after everyone is blazed. "Here's a couple of Ounces!"

Rolled up with a grape cigarillo to cover the flavor. "Oh man, I'm so high". (High from oxygen deprivation not THC)

Weed can take a lot of abuse, your buds still look very nice. You'll have some good smoke.