I have a big problem with the front forks of my YZ450F. I have a set of Race-Tech gold valves and installed them but did not do anything to the mid-valve assy. What the problem is the bike's forks are way to harsh in the first 6 -7" of travel. I called Race-Tech and they told me to change the mid-valve to a check valve and it would fix the problem. Not so! I put the forks back together and then had no damping whatsoever! I have tried to put the mid-valve back in and the forks no have damping but they are harsh and unrideable. I have .44 springs installed as I only weigh 160#. Anyone have any suggestions??????? Race-Tech is not much help on this ---- they say it should work. The upside down forks have never worked as well as the ones on my 84 Maico!