My friend just fininshed his first century ride, the Amtrak Century. Now he's got the bug to do more rides. Since the Solvang Prelude flyer was on our windshield after the ride, that's the one he wants to do.
He's a little concerned about doing the metric century, because it is rated as difficult. For those who have ridden these rides, how would you compare the half-century and metric century Solvang Prelude rides with either the Amtrak Century or Rosarito to Ensenada?