I decided to continue with this today as I had not gone beyond three steeps with it before. Cup number four @ two minutes, is the first where the brew looks more like a black tea instead of ink. The leather is reduced but still the predominate flavor. Mild and a bit earthy. Also getting the sticky lip feel.
Cup five @ three minutes. Light and mild. Almost like a sheng. More sticky lip, and now a soapy taste, and add numbing metallic mouth feel. I have experienced this before but never this intense. Interesting.
Cup six @ five minutes. The liquor has an orange tint. I am using a 12 oz mug, so this is like cup 11 and 12 using standard cups. Time to call this one. I am not tasting water but this cup is very light and mild.