I appreciate your response as you are using wheels in a strategic fashion... What brands of aero wheels do you ride? Also the Bastongnes use a wider rim and although not "aero", they are supposed to be more aero assuming one uses a 23mm tire. But this wouldn't make them spin up fast... what do you account for their superiority? What other alloy clincher have you used in the past? Have you been tempted to upgrade to the Ardenes?