How low do you go?

[lune ranger]

29+ tyres... What do you use? How much (little) pressure? Do you change the pressure during a ride?

[Alpinum]

Only rode on Nobby Nics in 2.6" on 30 mm internal rims on my own bike for a while and rode mostly at 1.5 - 1.6.
Lower felt sht. Not because of rolling the tyre but the way understeers.

Same goes for WTB tyres on Hugo I once tested.

Whilst some terrain where I live may offer the possibility to ride with 1 bar, the Ranger/Hugo and Nobby Nic/EastonArc30 combo both rode like poop in corners when at less then about 1.4 or 1.3 bar.
I did get used to the feeling, but just don't like it. Once we get snow I'm back on Nobby for my commute and guess will have to ride stoned to accomodate the cornering behaviour.

Yes, I do change pressure. Even on 2.35-2.4" with 30 mm rims. Even more so in winter when riding 4.8×26". It's our only contact to the ground after all and should be well explored if you want to get loads oyt of your riding.

[fatbikephil]

12-15 front, 15-20 back. The rockier the higher.
You can go lower (8) at either end for boggy ground but its not really worth it unless its for a long distance.