Removing excess plant matter from the untreated vodka tincture was a more involved process than I had hoped for. The long and short of it is that you need to dilute the tincture with water because the vodka redissolves most of the precipitated plant matter once it thaws (unlike with water brews, where the plant matter conveniently sticks to the bottom).
The question now is whether there is still enough alcohol in there to prevent the lime to drag down the DMT along with tannins etc. So, it would be very useful to find out this:
Ideally, diluting with water would not cause an issue here. If really necessary some more ethanol could of course be added after the freeze/thaw cycles and before the lime step. (Evap of the alcohol before consumption seems preferable anyway, IMO).
But it is unclear to me whether 'dilutedness'/concentration of the alcohol matters for the lime step or if the issue is simply that there be enough ml of alcohol to hold the DMT, even if it is in a larger amount of water than initially.
That being said, I am probably done with this lime tek. I think it's a promising tek for convenient pharmahuasca but now that I have experienced first-hand (by way of contrast) the important role that the plants play in the experience, I will probably just continue working with alcohol brews for oral DMT adventures.
But for those who want to experiment further: it seems reasonable to assume that a freeze/thaw step would result in much less need for lime and hence a significantly bigger yield. (IMO it is unlikely that all the DMT is pushed up into the alcohol layer after the lime step, as Denverrevolution suggests. After pipetting off the alcohol of my first experiment, I diluted the remaining lime layer with water and it turned DMT-yellow, just slightly darker than the pipetted off alcohol layer. Though perhaps even negligible amounts of DMT could colorize water, I don't know.)
Will report back in the future if I have anything significant to share. Otherwise I probably won't be spending much time here anymore as I find that even small amounts of social media/internetting/etc. are disruptive to my peace of mind. Thanks for the help [USER=42]@Transform[/USER], I hope others will develop this tek further!