I'm thinking about changing the rear shock spring on my 2000 WR400. Not sure what the stock spring is rated at. I'm 205 pounds without gear. I like the way it feels where I ride lots of rocks, roots, ect.., soaks it up pretty good, not a lot of deflection. But when I need it most feels like it's bottoming out. I only do Woods, trail riding, no tracks. Fast tight technical woods riding, lots of rocks. Will putting a heavier sping on it, make it harsher? What spring weight should I use? Any help appreciated.