This ECM Pressure Regulated Tamper arrived a while back but with the 20kg pressure I had to start back at the gym to get the muscle to push it down. It’s quite heavy and very shiny, my main criteria. I have found it makes quite a difference to consistency and the thick base, much thicker than the thin one that came with the machine has meant my pucks are level. Have dumped all the other tools though I sometimes give the grounds a twizzle with a chop stick a la Dave.