What's the deal with different stem lengths? I know that shorter is for dhing and longer is more xc oriented, but what does it change for the feel of the bike? I've got a longer stem (too lazy to check exactly what it is right now) and I'm thinking of getting a planet x meteor with a shorter stem reach. I don't really have a problem with my current stem, I'm just wondering if it'll do anything for me. I like to dirtjump a lot with some urban trialsy type riding as well. Stair hucks as well. If I get a shorter stem how will it feel different for me? Thanks.