My thinking is that extra pressure means the water isn't just finding a way through the cracks of a more course grind but being forced through the grounds meaning more flavor? Again, I have no idea what I'm doing. I don't think I've put a dozen cups through this thing yet. I do seem to be getting closer to what I want out of each cup with these little tweaks, though. I almost sent the thing back after my first cup; now I'm obsessed lol.more effort to push down on the Aeropress Also trying more steep time.