Important: see my previous notes on the Veloflex Vlaanderen 700 X 27C Tubular.
The Vlaanderen as a front tire just rocks as discussed there. Handling, comfort, rolling resistance, high speed descents—impressive. I think it will be my tire of choice for this type of event.
Outstanding handling and ride quality aside, the Vlaanderen allows me to descend significantly faster by perhaps ~5 mph. The large contact patch and ~+60g mass adds a stability over the Sprinter that to me really makes a difference in the feeling of being “hooked up” to the road.