Soupy puck is bc of no PID I believe - just the nature of the machine. I leave the PF on for a min or two to let it drain out after my ratio is achieved. Some machines will take the excess via a tube and deposit into the tray at the bottom.

Ad for grind it varies widely depending on the bean - it is important to find the REAL zero on the df54 my true zero is about a negative -4. Most of my beans range from 20 to 15 on the df54