Chain guys swear that eco tech have the advantage, ecotech guys will swear that chain cars have the advantage. I'm not the smartest guy and not the definative expert but we probably have run as many of these races as anyone the past couple of years. I can say these cars are as close as you could make it. We have been very competitive with a stock 06 R1. Some tracks and conditions favor one or the other, but that is the way racing always is.