You mention you’re in a living soil. Water until about 5 days before harvest. Don’t top dress anything that will take weeks to become available.

You will ruin your bud if you just stick it in a freeze drier without knowing the exact parameters needed. There are companies that claim to have figured out the process like https://www.spaceweedusa.com/ and https://harvestright.com/shop/

I’ve asked DGC who’ve used one to give us the data. Time, temp and pressure are a few data points I’d like to have.

Structure is genetic. You can influence structure by manipulating certain hormones though. One way to induce foxtails early would to be done by using bloom boosters with biostimulants that signal the plant to mature too soon. If done too soon, bud sites will stretch to fill in causing calyx foxtails. Stable genetics will not herm but light…

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They may have started to fade a bit soon but there is nothing you can do about it at this point. Let them finish.

Great close ups of the calyx but I don’t see any mold. Looks like some physical damage like Sunny mentioned.