Whew, lots to unpack.
First of all, so sorry to hear about your loss. Makes you realize that all of this means nothing in the end. I recently have gotten some news and dealing with the ramifications of some poor decisions……
Anyway, I’ll try to respond the best I can.
As far as watering, I was never watering based on number of days but the plants were consistent and are very temperamental to under watering. I feel like I was under watering because they were consistently wilting if I was even 4 hrs late. I really feel like these plants may be root bound. The pots are solid….
Lighting: I am where the mfg says, 12” @ 100% for mid-late bloom. In fact, I was at 75% and started increasing over the last week to get to 100% (at 90% currently).
I will admit this has been a little bit of a cooler grow, 70 deg average temp overall. Nighttime temps around 66deg. Average humidity is around 50% and Average kpa of 1.2
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Well, with that all said your plants did get super big and I’m sure there’s tons of roots in there. Unfortunately, if you were a root bound there’s not much you could do about it. The yucca would help in that situation as it would distribute the water properly through the soil and The Roots assuring everything got properly wet. I would simply use the yucca on each feed.
Personally I like 72° and 45% - 50% during mid to late flower. Dipping down into the mid 60s at night isn’t 100% ideal but I doubt with negatively affect too much.
It’s good that you’re confident you’re not over watering it’s better to underwater than overwater. With the small amount of leaf issues that you’re dealing with this late into flower unless it escalates at a rapid pace (I highly doubt that it will) you’re going to be just fine finishing.
We’ve taken every necessary precaution to rectify the issue that my little piss ant brain can think of. Sticking to the plan should give us reassurance that everything is correct in your nutrients. Your environment and lighting are ok. I truly believe Yucca will be beneficial to you for the roots. If you were root bound it would indicate spots that don’t get water as they’re clogged up redirecting water because of aggressive root growing. The Yucca will assure that every drop of dirt gets wet during watering.
Let’s watch everything closely
Your buds are on point! Looking good. The pistols seem to be maturing at a fast rate. 
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Watered this morning, unfortunately I’m out of voodoo and don’t have the yuca, but ordered them.
Cleaned up the plants today and reduced the lighting back to 75% as well.
For the record, you could have substituted voodoo Juice with either
Photosynthesis Plus
Vegetable fruit yield enhancer 
Both are microbial
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Voodoo Juice is about eight different microbes
Photosynthesis Plus are microbes
Vegetable fruit yield enhancer are fungi and humic acid
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I hope they turn around soon. 
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On a side note. All of the leaves under the canopy are fine…… no discoloration or spots. And the buds seem to be looking good.
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That’s what I’m talking about 
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Quick today, all plant tops turning deep purple/blackish. Buds looking good. All runoff around 900ppm.
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You gotta lot of weed going on there
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Dude them buds look tasty as hell. You did a great job with that! I’m assuming you’re going to do an outdoor grow this year?
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Oh hell no!! I ain’t messing with that again and losing everything to rot. Once bitten twice shy.
For this grow, I’ll tell ya what, they stinky!!! I mean, whew!! So strong!
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@lostgirl Start of week 9 since flip, looking frosty. Just like our weather……
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Yes they are Frosty. They look fat as well. Shouldn’t be too much longer
I use AN perfect ph trio. When I mix it with RO water I get one pH reading and when I mix it with tap water I get another. And when I add further supplements such as Big Bud or Cal Mag those two seem to drive the PH down further. With that being said, I like to think its always a great idea to test pH
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I haven’t checked my PH once since using AN PH perfect. 32 plants. No PH problem.
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You should, was this in response to something I posted 
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