Hi OE, he wouldn't give away any of his secrets but I think he most probably recalibrates his grinder by checking a personal barometer every 3 minutes, and he has an electronic scale that reads to an accuracy of one gram attached to his hand tamper. The hand tamper of course has been expertly chiselled from a tusk of the very finest ivory, to cunningly fit into the exact shape of his right hand. It wont work for anyone else. Oh I almost forgot, he wasn't allowed to get on the machine until after he'd finished an eight year apprenticeship ( two years more than anyone else of course), and two years after that he went to Rome to complete a one year postgraduate degree in Baristology. In the finest Italian tradition, he is now referred to as... "Dottore Barista"... if you please. It's a shame you didnt see the show really. Fresh Coffee