Northern lights from Dunnet Head - camera settings?

Caught the northern lights from Dunnet Head last week! Incredible display. Struggling with camera settings though - my photos don't do it justice. What settings do you aurora hunters use?

Tripod is essential obviously. Then: ISO 1600-3200, f/2.8 or wider, 15-20 second exposure. Shoot RAW so you can pull out the colours in post. Manual focus to infinity.

I use the PhotoPills app to check aurora forecasts and find the right direction to point the camera. Dunnet Head is perfect because you've got a clear northern horizon with no light pollution.

The cemetery at Balnakeil near Durness is an incredible foreground for aurora shots. Slightly eerie but the photos are otherworldly. Very little light pollution up there.

Thanks all! Going to try again next clear night. The forecast looks promising for later this week. Will try ISO 3200 and a wider aperture.