In the past I've only run tails down to 20% abv for feints collection. I figured at some point it's not worth throwing electricity at it for diminishing returns. I now have decent solar power on the house and running the still on a sunny day is free. My feints usually come from pot stilled UJSSM and I have usually run them through my VM column to turn into neutral.
Am I gaining any drinkable neutral by running my UJSSM feints down further than 20%? Does drinkable goodness get extracted from the horrible tails at really low abv?
Cheers.