Easy choice for me, train on clinchers and race on tubulars. This is always what I have done. I love the comfort and speed that tubulars brings me on race day and I love the fact that they are more puncture resistant. Tubulars are messy and the glue is nightmare but I have learned to master the gluing and the mess 🙂 Here is a good article from Cyclingnews about it.
Clinchers VS Tubulars
5x AG World Champion, Sub 9h Ironman athlete - Stephane originates from Belgium and spent many of his early years racing triathlon there. It is in Belgium through the influence of his parents that he fell in love with the sport. A natural competitor Stephane became a student of the sport always searching for ways to give him an edge over his competition. This constant study and striving for improvement has naturally progressed into a passion for coaching triathlon and its individual disciplines.