I wouldn't blow this off so easily. I have altered my technique every time I buy something new to get optimal results. Therefore, I wouldn't be surprised that what works on a robur and linea would not work at home. Those devices have a habit or minimalizing things that other machines are finicky about.Lord Fluff wrote:
I'm pretty confident it's not technique. Partly as my half day on Robur/Linea went so well, partly as both me and my partner could easily get good shots from the setup in the past.
I can imagine coming home after this training putting to use what you learned and this didn't translate as well to your setup.
OF course I could be wrong but food for thought. Whenever I have issues its usually what I don't think it is and it takes forever to fix.
In the meantime I would put a gauge on your portafilter and see what the pressure reads.