I rode my WR450 in my first desert race yesterday, The FRT Superstition 250 in Plaster City. I rode as a team with a friend, who rode his XR650. We did very well and won first in our category. I've never ridden my WR450 so aggressively before and noticed that I bottomed out several times and had a few instances where my back end would swing to the left or right (on fast speeds through the whoops). Some others who watched me and another friend say that I need major suspension work since I'm too heavy (about 200 pounds) for the stock suspension. Has anyone had a similar experience with their WR450 and what did you do to correct? Any suggestions would be greatly appreciated. Thanks!