Presso manual espresso machine pt2

With my Rocky in hand, it's time for part 2 of my Presso trial.  Using the same equipment aside from grinder and same coffee as before, I dialed in the grinder.  I few tries later, here's what I got

Presso manual espresso machine pt1

One of my most recent toys is the Presso espresso machine. It's a budget manual espresso machine costing around 150 dollars, making it great for beginner home baristas.  It does not require electricity, which makes it a great thing for camping.  It's a simpler espresso brew method and as you can see from the picture, you pour boiling water into the water storage at the top, put in perfectly tamped (major issue! and lots of failed attempts) coffee in portafilter and press down on the two arms.