Got myself the Silvia with PID, and after a few weeks of trying my Krupps grinder also the Rocky grinder. Few observations after a steep learning curve. (Remember I was a complete virgin) The single most difficult aspect to get consistently right is the even distribution of the grounds before tamping. After trying all the methods explained on the www and youtube, I now have a system which works OK, most of the time. I found a little plastic container that fits snugly over the basket. I grind and weigh into this container, put the basket over it, flip it around, quick few shakes to loosen the clumps, few horizontal shakes to level it out, basket into the portafilter handle, and then I distribute it even more evenly with a wooden distributor and palm tamper I made myself on the wooden lathe. I then tamp with the palm tamper which has a collar so that it tamps to the same depth each time. Quick polish with the metal tamp and then I draw the shot. Questions: 1. Is this worth the money? https://onlinecoffeeshop.co.za/shop/barista-tools/coffee-tampers/palm-tamper-and-coffee-distributor-black-adjustable-58mm-base/ 2. Does precision screens and baskets make a huge difference? Seeing that they are quite expensive. Next on the shopping list is a dedicated scale. Kitchen scales are just to variable and inaccurate.