Fat tyre pressure

I am now the owner of a 3" Halo Contra. What tyre pressure are people running 1. In the mud, 2. On hard pack?

Congratulations! What do you mean by ‘on hard pack’? I’m running abround 18psi pretty much the whole time. I like this pressure for trials and of course muni and for general riding, I really should change it but my longer rides usually involve trials and muni.

Have fun with the new tyre,