The target plant is in my old SIP structure pot which makes draining the reservoir a real challenge but the next one up will be in my new net pot SIP which will make it super easy so I'll probably start that double water technique next round.
From your lips to God's ears! And the next round will get this tea from the jump so hopefully that one will have a head start.
Hmmmm. I thought molasses in the tea was necessary to spike the microbe numbers from the added castings, even if the target soil already has high brix. But maybe what you're saying is that if already high brix you already have P mining microbes so it's not necessary to spike them, and maybe even works against you by throwing off the balance?
note: When I say feed the microbes, myco is included as well.
Molasses is microbe food. It mimics exudates. So if you add it to a tea it should be for 1 of 2 reasons.
1. If you are low on carbon in the soil it will provide lots to the microbes, thats the microbial boost it provides.
2.If you are brewing a microbial tea then you need a carbon source in the tea to allow the microbial population to explode in the tea.
In this manner you only want to add enough to get the microbes thru the brewing process. Once into the soil you want them to get carbon from exudates, not molasses.
The plant, with myco's help, will release exudates where the required nutrients are at in the soil and when the microbes eat the exudates they also eat the required nutrients to poop out at the root that released the exudates, or where myco transferred the exudates to, and myco moves the poop to the root. P is the main target here for the exudates. This is why myco is referred to as a najor P miner.
If you add molasses to your soil regularly the microbes won't chase exudates, they will chase molasses instead. So one dose of molasses in the soil will boost carbon and make the microbes robust, but too often and they get lazy. They won't chase exudates they will wait for molasses.
If you are already high brix then you are sequesterring carbon. The plant pulls CO2 from the air and creates carbon rich exudates from it to sustain it's microbes. It makes them it's bitches. They will populate the soil.
So once you are high brix you no longer need to add microbes, thus negating the need for molasses and teas.
If you have the 5 main components of high brix available in adequate amounts, high brix occurs. Calcium, O2, Carbon, P, and microbes/fungii.
Your brix is lower than 12 so at least 1 is missing. You know Cal is good, O2 is good, and you have microbes, that leaves carbon and P. You don't want the carbon to come from the soil, it needs to come from the air and into exudates.
The only reason you should be using a tea right now is to up P, and by adding microbes to the tea you are processing the P into a plant friendly manner in the quickest route.
To keep those microbes alive you need to add molasses or they starve in the tea.
You aren't adding microbes here because you need more microbes, you are adding them to fill their bellies with P to poop out in the soil once they get poured in. Myco will find the poop.
Once you become high brix you don't need any of that, you just need a supply of minerals to have exudates squirted on for consumption. In the ground the roots will just grow farther to find minerals, but in a pot you have to keep supplying them.
So to answer your question, once you are high brix you no longer need to add microbes, thus negating the need of all tea aspects. Top dressing will work now to supply those minerals without the use of molasses. Exudates have replaced molasses as the microbial feed.
Hopefully that answers your question. If not, please say so, this is an important aspect of high brix to get your head around. We are priming the pump here but you don't want to prime it forever, you want it to become self sustaining.
You need more P at the root level to be able to pull enough carbon from atmosphere. So we prime the system and if it works.... no more teas.
By doing it this way P becomes available in 5-7 days, not 10-14. So we check brix in a week and go from there.
. Those plants are 8-ish months old now so they should flower pretty good. I should see the flip starting any day now. I'm so happy they survived. 
