Maybe this can be of use to the 4:1 mystery.
4:1 was brewed. It was allowed to settle for a forgotten amount of time and the sediment was removed. This was done twice over the course of a month.
The then "sediment free" brew was allowed to sit cold for ~4 months. This yielded some interesting results.
This first picture: left most jar is the is top liquid layer. The middle jar is the bottom of the uppermost liquid layer. The right jar is the bottom sediment.
Note that the sediment jar's contents would not fit through the neck of the bottle that aged it, so it demanded several hard thrusts to break the jelly-like sediment to allow it to flow.
The second picture: this is the middle jar, close up. the interface b/t sediment and liquid. these chunks you can see here will re-dissolve if shaken.
The third picture: the purest liquid layer was reheated. This is the brew on the right. The left jar is a hawaiian quality caapi that was settled out and reheated in the same fashion as the 4:1. Visibly there was very little difference. Essences differed however.
My hopes are that this may shed some light on the mystery why the 4:1 doesn't behave normally and is so difficult to work with. To me there seems to be some kind of gunk that gets in the way of a clear brew. My long-settle revealed some kind of congealing substance. Perhaps this substance is what makes this powder an ideal pancake batter and difficult to brew with. Perhaps there would be a way to accelerate the congealing process and make a cleaner so-called 4:1 tea.