I was looking back at old Sage posts I made on cfuk where I am banned for life. I asked them to delete my entire chat history then and being lazy, all they did was change my forum name to 4 and presumably change the password, although I have never checked that!
But, I confess to having owned 5 Sage Dual Boilers over the years. YEsterday I watched this

Hopefully it opens up on the 5 minute mark. Now, back in the day you could access a hidden menu then turn the power down on the pump and select it to run at your desired level for up to 60 seconds. The mod was superb and easily reversible with a couple of button presses.
I am aware that in August 2022 Sage made some alterations to the internals to improve longevity but at the 5 minute mark, the vlogger shows that you can now adjust the pump pressure (I think) directly from the control panel.
If anyone with a pre August 2022 model wants this little hack I will post it, and likewise, if anyone with the newer model wants to follow my instructions to see if they still work, I will gladly share.
I think I answered my own question with this video

https://www.suddencardiacarrestuk.org/2024/02/thank-goodness-for-madeira-cake/