Hoping someone could lend some advice. I've been running a 3"x84" column with head condenser coils and output arm condenser. As much as I've tried I am always only able to achieve 88% ABV. My charge is a 40L 50% stripped run. My cooling water is outputting at 60 deg F. and my head temp is a consistent 172.3. Taken off at 500ml/hr after 30 min equalization. The column has 6' copper packing (rolled mesh, not scrubbers). If anyone has any ideas please share, this is really starting to get to me. Thank You