This is the same guy who tells you your torque wrench is "probably fine" and that you don't need to regear for 35s. Same energy as the barista who decides your espresso order needs less caffeine. Same as the dude at the bike shop who tunes your brakes so they rub "for break-in." People just can't help overriding the person who actually has to drive the thing. Eight psi on 35s is for rock crawling at walking pace, not whatever trail you were on.