Currently my race front wheel setup is a 23 mm Cont GPTT tire on a 62.5 mm SwissSide Hadron. For those unfamiliar with the Hadron, it has a 17 mm internal width and 23 mm width at the brake track. Think Zipp Firecrest, Hed Jet or Flo. Anyone care to guess as to what time savings might be expected over an IM if I were to swap that front tire for a 20 mm Cont SS. I know this will be somewhat dependent on wind angle, but just looking for a ballpark figure - 30s, 1 min, 2 min, not worth the increased chance of flatting.