i agree the stock ratio is a tad too high and plan to change mine next fall as well as add a 10 tooth driver.
Doing the ratios though the final drive of a stock dd is about 1.89:1. Going to a 63/57 brings that down to a 2.02:1. What i do not understand is that everybody says the gearing was better on the 03's and the reason for their speed. Yet the ratios on them with the stock 41/22 sprockets works out to be 1.86:1 which is slightly higher of a gear so i would think the dd machines should be coming out of the hole better. Does going from a 9 to a 10 tooth driver make that much of a diference on stock gearing?