It will dramatically how well your suspension works no matter where you ride. We found about 30mm difference in stiction at its worst which equates to about a 3rd of the travel in the fork. Not good. Any time you load up the front tire, the suspension cannot work as well as it should. For a test, try unloading the front end and measure how long the sliders are. Then let the front end come to rest on its own GENTLY!! Do not let it bounce down. Measure the length of the sliders. Then press the front end down, compressing the forks, and let them rise under there own power. Measure again. The difference between the two is exclusively stiction. Obviously there will be some stiction just because of the design of any fork. But ideally it should be minimal. As an example, Ohlins Superbike Forks have between 2-5mm of stiction, while a good set of stock forks has 10-15mm. Mine like I said before had between 20-30 depending on how the front wheel was put in and how much torque was put on the axle.