What to do with my amended coco grow?

I am growing 3 photos in a 2’x6’ space under a HLG 320 R-spec. 3 different strains (Amnesia, Gelato OG, and Jack Herer). I moved away from soil and tried Fox farms 70/30 buffered coco. I amended with my own concoction of Gaia Green 4-4-4, EWC, bat guano 10-3-1, and kelp meal.
They all did great after moving to their existing 5gal fabric pots. The initial amendments lasting through 6 weeks of vegging and 2 weeks after the flip. I top dressed 2 weeks after flipping.
I used the same amendments except for adding the Gaia Green bloom 2-8-4 and going very light on everything else.
Throughout the entire grow I’ve only given tap water that’s bubbled 24hrs and ph’ed to 5.9-6.1.
I’ve also given Stump Tea once every other week for microbial action.
Honestly I couldn’t believe how well they grew. I’m sure one could find something that wasn’t perfect but I didn’t see much to justify changing anything.
It’s now been 4 weeks since the flip (2 since top dressing) and finally I see a few things that make me wonder what to do next.
First, all three plants are showing premature darkened pistils….they have been for about 2 weeks. I’d say roughly 1/3 of the buds have at least a couple dark ones with a few buds having more than just a few.
I don’t know what causes this….heat, light, touchIng or brushing against them??
I have done a good bit of leaf tucking and super cropped a few tops that stretched too tall.
Also I have a steady breeze moving, so the plants are swaying a little.
I read that some plants that end up hermi display the same early dark pistils…..that would be a disaster. I just can’t imagine 3 different strains all going hermi.
But whatta ya think??
Lastly, the Amnesia is showing some yellowing on a few older fans. I lollipopped all 3 but left a few of the biggest bottom fans.
I’m not too concerned at the moment but I am wondering when I should top dress again. Do you think she’s just hungry?
The other 2 girls are still totally green and looking good.
I know I’ll need to top dress again before they’re ready, which I guess will be in another 6-7 weeks.
My pics arent the greatest but you can see both the dark pistils and yellowing leaves.
Thanks for helping out a fellow grower….cheers.

Your plants look fine as far as I'm concerned. I use GG also, in conjunction with the balast salt and rock dust. I however, top dress weekly, opposed to monthly. I like to give a steady feeding every week, and I have my pots on an auto drip system. Of course there's no rule of thumb here, how and when you decide to top dress is completely discretionary to the grower. I use the 4-4-4 and the 2-8-4 during flower though, just to make sure I'm getting sufficient amounts of nitrogen, but only 1 tbs of the 4-4-4. I personally think your regimen is fine. I get the hairs turning brown sometimes also, but the plants always turn out fine.

You'll always get a first round or two of browning pistils as they stack. I usually get a bunch of browns around week 4-5 and then again late flower as it matures. Doesn't look like anything to worry about.

VincenzioVonHook said:

You'll always get a first round or two of browning pistils as they stack. I usually get a bunch of browns around week 4-5 and then again late flower as it matures. Doesn't look like anything to worry about.

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So far I don’t see any male parts or nanners, so far so good.
I didn’t really think through the potential issues when I decided to grow 3 different strains.
And they are all very different. The Gelato OG started showing her pistils last and has almost zero orange ones, but they are the thickest and stacking the best.
The breeder says the Jack Herer has a wide range of 50-70 days for flowering time due to numerous phenos. Yesterday was day 40 of actual 12/12 and she’s def got another 30 days to go, unless something changes.
All 3 plants have that same lemon pledge smell.

Bullmark said:

So far I don’t see any male parts or nanners, so far so good.
I didn’t really think through the potential issues when I decided to grow 3 different strains.
And they are all very different. The Gelato OG started showing her pistils last and has almost zero orange ones, but they are the thickest and stacking the best.
The breeder says the Jack Herer has a wide range of 50-70 days for flowering time due to numerous phenos. Yesterday was day 40 of actual 12/12 and she’s def got another 30 days to go, unless something changes.
All 3 plants have that same lemon pledge smell.

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Don't worry lol. I'm growing three different strains in three different mediums so I have my regrets as well.

Yours are nice and uniform for three different strains. Lemon pledge sounds better than the farts, pepper and fuel coming from mine ATM.

im pretty sure it's nothing to worry about pistil wise, but you'll know for sure in a week or so.