I weigh about 85 kg, and use about 4 bar at the rear, maybe 4.5 bar when the bike is loaded. At the front, I use a little less than 4 bar unloaded, about 4 bar with front panniers.
I like the feel of the Supremes--no vibration, though the ride is firmer than, say, the 700 x 35mm Marathon Racers I use on my day-ride bike. [Schwalbe seems to have discontinued the 26 x 1.75 Racers
]
My only problem with the Supremes has been a couple of sidewall cuts in my first season with them (2014). No problems at all last year.