Hi all; I'm hoping I can get some feedback from you as I'm a bit confused on my experience this weekend... One of my good friends has a 2002 YZ426f and I have a WR450 (2004). This weekend we rode at the dunes in central Utah, and we traded bikes for a little while. My observations: -His 426 pulled out of every gear much easier; it would not bog. My WR needs shifting quite a bit more, as it tends to bog in the higher gears. His description was that the midrange on his bike seemed much fatter. -His 426 seemed much more stable than mine; my bike tends to dart around a lot (more headshake???), his seemed to float on the sand much better. His didn't make you 'fight' the bike, mine seems like it takes a lot more effort to keep it in a straight line. I'm a bit confused, and a little bummed to find I liked riding a bike that cost 1/2 mine much more. So, is that typical of a YZxf vs a WR? Here are the mods we have done to our bikes: YZ426f- protapers and top triple clamp, clipped 'blue wire', PB header and ti-4 14" pipe. WR450- JD kit, zipty fuel screw, grey wire mod, opened up airbox, barnums airbox lid, twin air filter, PB header, Q2 pipe. Any comments would be greatly appreciated; I'm relatively new to this sport, and still trying to figure out a few things!