why: to prevent channeling how: 9 methods from la marzocco used before tamping some claim stockfleth method is most useful but IMHO, WDT or just paperclip is just as effective how to easily make coffee distribution tool: some tools on market ( just a toy?, pro tool for barista?) ???, BT wedge, ??? twister Ona Coffee distributor so far you don't find much how the puck will look like after pulling the shot. Why? bplus