agreed. for most conditions that are not extreme 2.1 is about as wide as practical. the 2.25 Cinders I ride are actually less than 2.2 and have done me well from mud to boulders. dry,wet, damp , long steep climbs, 60mph downhill fire roads, name it and they have not been too thin to excell.
I ride them at aprox. 35 psi . if you are my size, ride my bike, with my style of riding you may not like the setting I use. a thicker sidewall tire like the Cinders will give a firmer feel at a certain psi than a thinner walled tire. if I ran my Trailblasters at 35psi I felt like I was riding flat tires. I ran 45psi on them and 35psi on the Cinders feels stiffer than them, epsecially in the corners.