New guy that has been building RA Racers for about three years have been very competitive untill last year when someone brought a pinewood derby car with canted rears and lightened wheels i did not check to see if it was a three wheeler or not. It beat my car by less than half a car and it was all at the start and my car was gaining at the finish line. Do you guys think it was because of the lighter wheels and having less rolling resistance at the start. My car is built with all 4 wheels touching and no steer it rolls straight with no steer over 6 feet. But my new car will will be built with what i have learned from reading your site. Any tip or tricks that yall could share that have built RA Racers would be a great help.