MCW
Somebody's talking crap here & it ain't the tree!
I would say the 390 has around 140-150 lbs and the 660 is probably at 150-170 from the ones I had. The stihls seem to have more compression than the huskys.
Spot on. My 390XPG has 155psi but I'm a bit wary the guage was bleeding pressure. My 3120 was 145psi and this saw hasn't seen much work. For some reason my new guage's fitting didn't want to bottom out properly in my Huskys but was fine in the Dolmars.