u/Direct-Medium1185

I struggle with the top part of heart. Very often it's uneven.
Also is there any good tutorial for milk integration? I think I might be doing that wrong.
Any personal tips?

Any tips? It doesn't look good.

Here are my last 2 attempts. Also how do you measure if milk is aerated enough? I still can't find my sweet spot.

I notice when I start pour earliest the final result is better, but I must finish sooner as well, so cup is not full. These are 250ml cups, using big handled airflow jug.

Today I noticed that during pump run the pressure does not build up. Here is a quick video where I use blind basket. Also during espresso run before I noticed I heard the sound of rubber. After shot drip trace was full. The water tank is not empty.

Any ideas what that might be? It's still on warranty, but that might be something silly.