Hello, my Hario paperless pour over came and tried my first cup with sound mountain view, filled coffee up to the 1 line, bloom for 30 seconds, then started to pour a very fine stream of water in, just enough to saturate and watched it drip into my mug.... taste? Sour (a little, not terrible).... and cold. I think by the time my mug filled up, it had already gone cold. Ok so possible fixes... I did notice that it dripped faster if I overfilled the water paste the coffee grinds so that it fills the cone, so maybe that will help with temp. As for sour... from my internet searches, it seems that it has underextracted, so a finer grind. Problem is... I don't drink coffee too often (it's a treat for me, like cake), so I just get it pre-ground from a local roaster. So.... now what? I sorta thought about doubling up on the coffee, filling it to the level "2" mark, this would make it flow slower would it not? but other than that... any other suggestions? Just stick with another method (aeropress) until I can get another bag and get it at a finer grind next time?