I'm at 175 llbs. and run rims with a 23.4mm inner width with 25 psi front (tubeless) and 28 psi in the rear (tube). Was running 25 in the rear until I dented the rim to the point it won't hold air set up tubeless. Occasional I feel something kind of squirrelly in a fast corner. But every time I've gone back and looked at the corner, there are drift marks. So maybe you are really cornering faster than you think ?i just don't get the whole ultra low air pressure trend. i'm about 210-215 lbs geared up, and i can't run anything lower than 30 psi without it feeling squirrely as fuck, plus the hit to rolling resistance. trail or DH, even with wider rims (granted not the super wide modern nonsense) and DH casings, the lowest i could get was maybe 27-28.