Ha! Brilliant! You're definitely getting there ...
When I first got my Gaggia Espresso (the heavy plastic one from the '80s), it was a gift ... and the chap who owned it made wonderful coffee, so I knew it could.
Alas, I couldn't ...
I tried everything I could think of, scientifically checking my tamp on weighing scales, even went the whole hog into concocting a pressure gauge. It just took time. Like riding a bike, something inexplicable happens. One day you can't ... one day you can.
I gave that machine to my son, who didn't use it ... ever ... for maybe 18 months.
... and so it came back to me. I de-scaled it and carried on. Again, I could not get a decent brew from it. Until I could. It just happened one day. Perseverance.
One thing I did note - 15 bar of pressure. If that's for real, it could be too much. One thing I used to do with my machine was very briefly crack open the steam wand prior to pouring the coffee. VERY briefly! I had a feeling that the slight loss of pressure was the key. Now, I don't ... so it probably wasn't actually anything to do with it. Coffee is more magic than science.
I think it's time for one. Enjoy
