Changing the sprockets is easy enough, but I'd leave it at that. You guys put up a pretty good showing at UTC, and you still have room for improvement without mechanical changes. (I believe you went from no autonomous to shooting about 4 in by the end of the regional.. eh?
)
Remember, its not what round you are picked in, its what alliance you are in. I would rather be the last pick with 2 decent shooters than the first pick with 1 good shooter and a box on wheels.