Has anyone experimented with new wheels and tires on the LST yet? I was real close to buying a set of 40 series rims and Big Joe's but I was not sure how they would fit and if it would change the top end speed at all being they are smaller in diameter over all? Anyone used these yet and what kind of results did you see, was it worth it? If you have not used the Big Joe's, what tires have you tried and how did they work out for you?