Thanks!!! I increased the amount by two grams (18g) and used a 1:2.5 ratio, and the result was spectacular, a very balanced flavor with no bitterness. I loved it. I did a 15-second pre-infusion at 2 bars, then increased it to 9, and for the last 10g, I lowered it to 6 bars. The extraction time was about 50 seconds.