I'm trying to understand what you've said, but it is incredibly difficult... If I am reading you right, you are recommending 3.73s because 4.30s made you spin too much? Well, I can go around spinning everywhere with 3.27s, too, it's all about self-discipline. I don't spin when I drive around town, and I drive rather agressively. If you know your car you'd know you can still pass everyone without having to go past 1/3 throttle. A friend of mine with an 01 got 3.73s and he was depressed about the results for months until he simply traded it in and got an 03. 4.30s will increase your efficiency around town if you drive conservatively and your highway mileage will barely suffer. They are more fun than 3.73s and much better for the track than 4.10s.