i recently converted from a hybrid (scott sub - 2 years as main commuter) to a cross check check. i specifically went with sti shifters and 700x25 ultra gatorskins b/c stock shifters and tires were too much of a comprimise for my commute. after a few days on the cc drop bars i felt the same control as i got from the flats on the hybrid.

consider the magnitude of your change; either the volpe or the cc is going to be a notibeable improvement.