Tiltback setting tweaks

I have an XRV that seems to be operating well.
I’ve been thru the IMU steps and followed the setup guide steps.

It feels like my board may be riding a little ‘nose up’. What would be the easiest way to set the nose angle down 1 degree (for example)?
[edit] I found this great tutorial video on YouTube with detailed explanation:

the tiltback explanation starts at the 50 second mark.