Pygmalion Here is a simple experiment you could try.
The temperature was at 96C because it was on at the end of the heat up cycle towards 93C. For the sake of the experiment, on the subsequent shot, I have set the temp to 96C, let it get here and set it back to 93C.
On the subsequent shot, I emptied the blind basket before starting, so both are from the same starting point. They were taken approx. 7 minutes apart. I also did one with the basket full of water, and the behaviour is the same overall, with the exception that, as expected, it reaches the target pressure faster.
When using coffee rather than the blind basket, the behaviour is the same, but the pressure gradually goes down to approx. 8.75 bar on the dial over the course of 35 seconds, as expected.
7 minutes later:
This is an older video where it shows a coffee pour. This was when the Elizabeth’s pressure was set at 10 bar. But you can see the behaviour of the gradual pressure reduction. These days is the same, but at 9 bar or thereabouts.
With coffee (older video):
Hope the above is helpful.