I tried the search function but I couldn't find an answer. I have a DHX5.0 and I would like to know what all the adjustments are. I am not a techno noob(I am in a tech university in the netherlands) it just is that the fox manual is full of crap. What I am interested in is the Air pressure and the pro pedal. According to the manual: ProPedal damping affects the first part of the compression stroke and is designed to control pedal-induced suspension bob. So, untill how far in the stroke does this adjustmant have effect? and what is the effect, does it crank up the LSC? The air pressure for the boost valve, according to manual:The Boost Valve creates a position-sensitive damping scheme that allows for a seamless transition from efficient ProPedal to square-edge bump absorption to a bottomless end-of-stroke feel. The Boost Valve is not adjusted directly. Instead, its behavior and performance characteristics are influenced by the air pressure. So, what happens, more LSC, more HSC, both? My own observations, I took out the shock and removed to spring so I could compress it. With the boost valve at 75psi and no pro pedal I could easily compress it. With max pro pedal and 75psi, compressing became harder but I couldn't feel a point where it got less.(where the propedal should stop working) With max propedal and 200psi I couldn't compress it any more. With 200 psi and no propedal it was somewhere in between. Not really scientifical but still representative I hope. My guess is that the pro pedal alters the low speed compression over the entire stroke and that the air chamber increases the low and high speed compression. can somebody clearify this for me. If the tuning range isn't enough for me I am going to try it with shims or oil weight. I have found some info on RM but I still have a question concerning oil change/no air inside the system. Should I completely submerge the shock while reasembling? or how can I guarantee that there is no air inside?