Um, I would. A straight 2.5" shock vs having an external reservoir; progressive vs digressive valving; spring rates. I am not saying one is better than the other, but both - along with Fox, King - are high-end, tunable, rebuildable - and all have slight variations. If you're going to drop the coin and only want to do it once, determining exactly what you want/need and seeing which one is the best fit is the right thing to do. Buying one over the other because everyone else does makes no sense; buying one over another because a person who has only run one says "it's the bestest evah" also makes no sense.