Week 12 was also a week of spotty care due to family emergency. Plants were watered on 2/24/20 with 3/4 gallon of water with pH'd to 6.5. Runoff was 6.4 with runoff of 6.4. Watered again on 2/27/20 with 3 tsp Big Bloom and 2 tsp Tiger Bloom pH'd to 6.4 with about 10% runoff. Plants were rotated under the footprint. The addition of Cal-Mag has not seemed to stop or slow down the deficiency signs. It appears as if it is a mobile deficiency and I am leaning towards wondering if the lack of phosphorus signs with the red veins actually was the underlying cause. Week 14 will show the heavy progression of the deficiency. Nothing else of note.
@MovingOn, This genetic has always typically taken me about 10 weeks to get my preferred 10% amber however I think you are exactly right. They are just about 100% milky and I would not at all feel bad to do it on week 8.