I've got a '03 xc700 and the fuel economy sucks! I know i won't ever change the sled into a really fuel efficient machine but I would like to increase the economy a little and i was told that gearing down a tooth would help, because the engine would not be working as hard, and that is where i am losing most of my economy. Is this true? The sled is basically stock, i have put on a boost bottle to try and clear up the bottom end and i have an inch and a half camoplast track on it. Any feedback would be appreciated. the gearing right now is 25 on the top and 40 on the bottom.