mmmm I always had low yeild extractions until I tried nomans water increase to the solution and after that my yields have increased by almost 300%

How long did you let the bark sit In the basified soup before adding the naphtha?

I know nomans tek says to wait 1 or 2 hours but I find ot helps it to sit 24 hours to a week.

I'm a beginner at extractions as well, hopefully someone with more experience can chime in.

Safe and Happy Travels!