Nitrogen Deficiency too early in flower?

This is a Sherbert by seed stockers. I have two of them going, in the same conditions but this is the only one showing deficiency.

Soil is OF/HF with dry amendments. EWC, 4-4-4, flower girl, fish bone meal, and kelp meal.
pH on this plant is 6.5 measured with bluelab soil pen
Watering pH'd water only until a couple waterings ago when i saw the signs of deficiency. Started added calmag and FloraMicro for nitrogen.

So here she is: What do you guys think?

Nitrogen is heavy in veg not flower

Dosent look like N issues to me, PK booster is what I'd suggest