I've been trying this 4:6 recipe made famous by World Brewers Cup 2016 winner Tetsu Kasuya over the past few days with quite good results. I like my coffee 'Norwegian' for a lack of better words, some may call it tea-like or even weak but I just appreciate sweet and acidic tones and cleanness, so I use a light roast Ethiopian or Kenyan coffee and only 300 grams of (really) coarse ground coffee instead of 320.
I'm going to give this a shot when I get home. One thing, does every subsequent pour happen once the water from the previous pour has completely drained? I'm so used to using time as a metric as opposed to water level.