I have a line on a 2007 YZ450 shock already sprung for my weight (with a factory Ti spring) and as far as I know, stock valving. My two questions are: - Is the shock a direct swap with the '07-11 WR450 shock? - Is this a worthwhile effort (in light of the fact that I could just revalve my stock shock for a little bit less)? I know there's probably a pound or two to be lost with the Ti spring, but I'm wondering how different the stock YZ valving is from the WR's and if that combined with the weight loss would make this worthwhile. Primary usage is (increasingly faster) dune and trail riding, eventually enduro and hare scramble racing, and one major goal is bottoming resistance off jumps. I also just bought some SSS forks off an '06, so this would be paired up with that front end (which I will revalve and spring for me as well). Thanks for any advice.