I just bought the 2010 Stumpjumper Comp 29er. The fork's instructions state there are two types of compression setups. Some forks have a variable compression setting all the way to lockout. The others are either full open or locked out. How can I tell which one I have? This leads me to the next question; should I get the PopLoc, PushLoc or PopLoc Adjust. BTW, what is the difference between the three? FYI I am loving the 29er.