I seem to be plagued with little problems that i simply have no control over as to why they happen. I take the bike in to the lbs have it serviced seems fine after a test ride and when i hit the trails i notice it . Ive been back and fourth numerous times already and its starting to become a hassle (4-5 times in the past month). So now iam going to try and fix this myself. The bike will not stay in 1st, 2nd or 3rd gear. It also doesnt seem to downshift to 8th gear if Iam coming from 9th. Now after some reading on parktool.com It seems that i have to loosen the L screw but keep it to its tightest setting to have a clean shift? Do you guys have any other inputs??