Originally posted by Duckwah
its proabably not a matter of sticking a particular pressure in the shock but rather adjusting the pressure up or down to get the right amount of sag
for cross country riding try about 25%.
this means measuring the overall length of the travel then adjusting the pressure so that when you sit on the bike with your weight evenly distributed 25% of the travel is taken up
its hard to specify settings because every bike has different leverage ratios for the shock