Hi Alan, love the press, been using it for many years. Instructions state that you should stop pressing when you feel enough resistance. That is above when the seal hits the puck, right? I read that it will reduce the bitterness of the coffee, is that true? But, pressing all the air thru the puck will also add the oils to the coffee to increase the flavor/taste, correct? So, what is the deal and trade-off? Thanks – From Cosmo B.